GB2452321A - Method of folding a sheet of packing material about a triangular-section group of cigarettes - Google Patents
Method of folding a sheet of packing material about a triangular-section group of cigarettes Download PDFInfo
- Publication number
- GB2452321A GB2452321A GB0717005A GB0717005A GB2452321A GB 2452321 A GB2452321 A GB 2452321A GB 0717005 A GB0717005 A GB 0717005A GB 0717005 A GB0717005 A GB 0717005A GB 2452321 A GB2452321 A GB 2452321A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- packing material
- cigarettes
- folding
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012856 packing Methods 0.000 title claims abstract description 91
- 239000000463 material Substances 0.000 title claims abstract description 88
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011888 foil Substances 0.000 description 8
- 239000003292 glue Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/02—Packaging cigarettes
- B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/14—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks folded-up around all sides of the contents from a portion on which the contents are placed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
- B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
- B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
- B65D85/1048—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the shape of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
- B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
- B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
- B65D85/1048—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the shape of the container
- B65D85/10484—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the shape of the container having rounded corners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
A method of folding a sheet (5) of packing material about a triangular-section group (4) of cigarettes; the method including the steps of: bringing a first end wall (17a) of the group (4) of cigarettes into contact with the flat sheet (5) of packing material, so that a first lateral wall (16a) of the group (4) of cigarettes is perpendicular to the long sides of the sheet (5) of packing material and parallel to the short sides of the sheet (5) of packing material; folding a first portion of the sheet (5) of packing material onto the first lateral wall (16a); folding the ends, projecting from the first lateral wall (16a), of the first portion of the sheet (5) of packing material onto a second lateral wall (16b) and a third lateral wall (16c); and folding a second portion, opposite the first portion, of the sheet (5) of packing material onto the second lateral wall (16b) and third lateral wall (16c), and partly onto the previously folded first portion of the sheet (5) of packing material to form a tubular package having one open end at a second end wall (17b).
Description
-*1 -2452321
S
METHOD OF FOLDING A SHEET OF PACKING MATERIAL ABOUT A
TRIANGULAR-SECTION GROUP OF CIGARETTES
TECHNICAL FIELD
The present invention relates to a method of folding a sheet of packing material about a triangular-section grOup of cigarettes.
BACKGROUND ART
Triangular-SeCtion, rigid, hinged-lid packets of cigarettes, as described, for example, in Patent EP1240088B1, have been produced for some years now.
In a rigid, hinged-lid packet of cigarettes, the group of cigarettes is wrapped in a sheet of inner foil packing material to which no glue is applied; a sheet of rigid outer packing material is folded about the sheet of inner packing material to define a cup-shaped container having an open top end closed by a hinged lid; and, finally, an impermeable overwrapping, comprising a sheet of transparent plastic packing material, is fOlded about the sheet of outer packing material and heat sealed.
The sheet of inner foil packing material is always in the form of an elongated rectangle, and is first folded into a U about the group of cigarettes, either transversely or longitudinally, depending on the design of the cigarette packing machine. One example of folding a sheet of packing material about a group of cigarettes is described in Patent GB7 85076.
The sheet of foil inner packing material has a tear-off top portion bounded by a tear line, and which is torn off, when the packet of cigarettes is unsealed, for easy access to the cigarettes. The tear line defining the tear-off top portion is normally straight, and is formed by a rotary cutter on the packing machine.
If the sheet of inner packing material is folded longitudinally into a U about the group of cigarettes, the tear line defining the tear-off top portion may be complicated in shape and very difficult to form on the machine.
Moreover, in currently marketed triangular-section, rigid, hinged-lid packets of cigarettes, the tear-off top portion of the sheet of foil inner packing material is not always easy to remove.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a method of folding a sheet of packing material about a triangular-section group of cigarettes, designed to eliminate the aforementioned drawbacks.
According to the present invention, there is provided a method of folding a sheet of packing material about a triangular-section group of cigarettes, as claimed in the accompanying Claims.
BRIEF DESCRIPTION OF THE DRAWINGS
A number of non-limiting embodiments of the present invention will be described, purely by way of example, with reference to the accompanying drawings, in which: Figure 1 shows a front view in perspective of a packet of cigarettes produced in accordance with the present invention and in a closed configuration; Figure 2 shows a rear view in perspective of the Figure 1 packet in a closed configuration; Figure 3 shows a front view in perspective of the Figure 1 packet in an open configuration and with a tear-off top portion of an inner package removed; Figure 4 shows a view in perspective of an inner package of the Figure 1 packet; Figure 5 shows a view in perspective of the Figure 4 inner package with a tear-off top portion removed; Figure 6 shows a spread-out plan view of a sheet of foil packing material, with the fold lines marked; Figures 7-10 show schematic views in perspective of successive steps by which to fold the Figure 6 sheet of foil packing material about a group of cigarettes to form the Figure 4 inner package; Figure 11 shows a front view in perspective of the Figure 1 packet in an open configuration, and bef ore a tear-off top portion of the inner package is removed; Figure 12 shows a front view in perspective of a variation of the Figure 1 packet in an open configuration, and with a tear-off top portion of the inner package removed; Figure 13 shows a front view in perspective of a further variation of the Figure 1 packet in an open configuration, and before a tear-off top portion of the inner package is removed; Figure 14 shows a front view in perspective of the Figure 13 packet in an open configuration, and with a tear-off top portion of the inner package removed.
PREFERRED EMBODIMENTS OF THE INVENTION
Number 1 in Figure 1 indicates as a whole a rigid, equilateral-triangular-section packet of cigarettes comprising a cup-shaped bottom container 2, and an inner package 3 (shown partly in Figure 3 and completely in Figure 4) housed inside container 2. Inner package 3 is defined by a prism-shaped group 4 of cigarettes with an equilateral triangular section, and by a sheet 5 of foil packing material (shown folded in Figure 4 and flat in Figure 6) completely enclosing group 4 of cigarettes. Container -.5- 2 has an open top end; and a cup-shaped lid 6 hinged to container 2 along a hinge 7 (Figure 2) to rotate, with respect to container 2, between an open position (Figure 3) and a closed position (Figures 1 and 2) *5 opening and closing the open top end respectively.
When lid 6 is in the closed position, container 2 is in the form of a triangular-section prism comprising a top wall 8 and a parallel opposite bottom wall 9; and three lateral walls.10. Three rounded longitudinal edges 11 are defined between lateral walls 10, and six square transverse edges 12 are defined between top and bottom walls 8, 9 and lateral walls 10.
Packet 1 also comprises a collar 13, which is folded about group 4 of cigarettes and on top of sheet 5 of foil packing material, and is connected (glued) to tbe inside of container 2 to project partly outwards of the open top end and engage a corresponding inner surface of lid 6 when lid 6 is in the closed position.
As shown in Figure 4, inner package 3 comprises a tear-off top portion 14 bounded by a tear line 15, and which, when inner package 3 is first opened, is torn off for easy access to group 4 of cigarettes (e.g. as shown in Figures 3 and 5).
As shown in Figure 6, sheet 5 of packing material is in the form of an elongated rectangle, and has two parallel opposite long sides, and two parallel opposite short sides.
As shown in Figure 7, group 4 of cigarettes is substantially in the form of a right triangular-section prism, and comprises three rectangular lateral' walls 16 (only two shown in Figure 7) defined by the cylindrical lateral walls of the cigarettes; and two parallel, opposite, triangular end walls 17 (only one shown in Figure 7) defined by the flat ends of the cigarettes. Three longitudinal edges 18 are defined between the three lateral walls 16, and six transverse edges 19 are defined between the three lateral walls 16 and the two end walls 17.
The way in which sheet 5 of packing material is folded about group 4 of cigarettes to form inner package 3 in Figure 4 will now be described with particular reference to Figures 7-10.
To begin with, as shown in Figure 7, a first end wall 17a of group 4 of cigarettes is brought into contact with the flat sheet 5 of packing material, so that a first lateral wall 16a of group 4 of cigarettes is perpendicular to the long sides o� sheet 5 of packing material and parallel to the short sides of sheet 5 of packing material, and so that a second lateral wall 16b and a third lateral wall lQc of group 4 of cigarettes slope with respect to both the long sides and short sides of sheet 5 of packing material. The first end wall 17a of group 4 of cigarettes is preferably positioned symmetrically in the centre of sheet 5 of packing material with respect to both the long sides and short sides of * sheet 5 of packing material.
Next, as shown in Figure 8, a first portion of sheet 5 of packing material is folded onto. first lateral wall 16a.
At this point, as shown in Figure 9, the ends of the first portion of sheet 5 of packing material projecting from first lateral wall 16a are folded onto second lateral wall 16b and third lateral wall 16c. As shown in Figure 9, a second portion, opposite the first portion, of sheet 5 of packing material is then folded onto second lateral wall 16b and third lateral wall 16c, and partly onto the previously folded first portion of. sheet 5 of packing material to form a tubular package with one open end at.a second end wall 17b.
Finally, as shown in Figure 10, sheet 5 of packing material is folded onto second end wala 17b to complete folding of sheet 5 of packing material about group 4 of cigarettes and form inner package 3.
More specifically, folding sheet 5 of packing material onto second end wall 17b comprises folding sheet 5 of packing material successively about the three transverse edges 19 of second end wall 17b.
As shown in Figures 1-10, sheet 5 of packing material has two tear lines 15, each of which is parallel and close to a respective short side. of sheet 5 of packing material, and defines tear-off top portion 14, which therefore covers the whole top end of inner package 3, as shown clearly in Figures 3, 4 and 5. In a different embodiment, not shown, the two tear lines 15 are located at different distances from the respective short sides of sheet 5 of packing material. In a further embodiment not shown, sheet 5 of packing material has two tear lines 15, each of which is parallel and close to a respective short side of sheet 5 of packing material, is shorter than the respective short side of sheet 5 of packing * material, and defines tear-off top portion 14.
In a further embodiment shown in Figures 12 and * 14, sheet 5 of packing material has one tear line 15 parallel and close to a short side of sheet 5 of packing material, and defining tear-off top portion 14, which therefore only covers a front portion of the top end of inner package 3.
Figure 11 (corresponding to Figures 12 and 10) and Figure 13 (corresponding to Figure 14) show two ways of folding sheet 5 of packing material onto second end wall l7b to conp1ete folding of sheet 5 of packing material about group 4 of cigarettes and form inner package 3. The two ways, shown in Figures 11 * 25 and 13, of folding sheet 5 of packing material onto second end wall 17b differ. as to the order in which sheet 5 of packing material is folded successively about the three transverse edges 19 of second end wall 17b. More specifically, in the Figure 11 embodiment, sheet 5 of packing material is folded first about the rear transverse edge 19 (i.e. parallel to hinge 7 of lid 6), and, in the Figure 13 embodiment, sheet 5 of packing material is folded last about the rear transverse edge 19 (i.e. parallel to hinge 7 of lid 6).
The methQd described above of folding sheet 5 of packing material about group 4 of cigarettes has several advantages, by being cheap and easy to* implement on a packing machine and, above all, by employing exclusively straight tear lines 15.
Moreover, using the above method of folding sheet 5 of packing material about group 4 of cigarettes, the tear-off top portion 14 is easy to remove.
Claims (10)
1) A method of folding a sheet of packing material about a triangular-section group of cigarettes; the sheet of packing material is in the form of an elongated rectangle, and has two parallel, opposite long sides, and two parallel, opposite short sides; the group of cigarettes is substantially in the form of a triangular-section prism, and comprises three lateral walls defined by cylindrical lateral walls of the cigarettes, and two parallel, opposite end walls defined by flat ends of the cigarettes; three longitudinal edges are defined between the three lateral walls, and six transverse edges are defined between the three lateral walls and the two end walls; arid the method comprises the steps of: bringing a first end wall of the group of cigarettes into contact with the flat sheet of packing material, so that a first lateral wall of the group of cigarettes is perpendicular to the long sides of the sheet bf packing material and parallel to the short sides of the sheet of packing material; folding a first portion of the sheet of packing material onto the first lateral wall; folding the ends, projecting from the first lateral wall, of the first portion of the sheet of -11 -packing material onto a second lateral wall and a third lateral wall; and folding a second portion, opposite the first portion, of the sheet of packing material onto the second lateral wall and third lateral wall, and partly onto the previously folded first portion of the sheet of packing material to form a tubular package having one open end at a second end wall.
2) A method as claimed in Claim 1, and comprising the further step of folding the sheet of packing material onto the second end wall to complete folding of the sheet of packing material about the group of cigarettes.
3) A method as claimed in Claim 2, wherein the step of folding the sheet of packing material onto the second end wall comprises folding the sheet of packing material successively about the three transverse edges of the second end wall.
4) A method as claimed in Claim 3, wherein the sheet of packing material is folded first about a rear transverse edge parallel to a hinge of a lid.
5) A method as claimed in Claim 3, wherein the.
sheet of packing material is folded last about a rear transverse edge parallel to a hinge of a lid.
6) A method as claimed in one of Claims 1 to 5, wherein the first end wall of the group of cigarettes is positioned symmetrically in the centre of the sheet of packing material with respect to both the -12 -long sides of the sheet of packing material and the short sides of the sheet of packing material.
7) A method as claimed in one of Claims 1 to 6, and comprising the further step of forming, on the sheet of packing material, two tear lines, each of which is parallel and close to a respective short side of the sheet of packing material, and defines a tear-off top portion of the sheet of packing material; the tear-off top portion defining a whole top end of an inner package defined by the sheet of packing material folded about the group of cigarettes.
8) A method as claimed in Claim 7, wherein the two tear lines are located at different distances from the respective short sides of the sheet of packing material.
9) A method as claimed in Claim 7 or 8, wherein each tear line is shorter than the respective short side of the sheet of packing material.
10) A method as claimed in one of Claims 1 to 6, and comprising the further step of forming, on the sheet of packing material, one tear line parallel and close to a short side of the sheet of packing material, and which defines a tear-off top portion of the sheet of packing material; the tear-of f top portion only covering a front portion of a top end of an inner package defined by the sheet of packing material folded about the group of cigarettes.
-13 - 11) A method of folding a sheet of packing material about a triangular-section group of cigarettes substantially *as hereirthef ore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0717005A GB2452321B (en) | 2007-08-31 | 2007-08-31 | Method of folding a sheet of packing material about a triangular-section group of cigarettes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0717005A GB2452321B (en) | 2007-08-31 | 2007-08-31 | Method of folding a sheet of packing material about a triangular-section group of cigarettes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0717005D0 GB0717005D0 (en) | 2007-10-10 |
| GB2452321A true GB2452321A (en) | 2009-03-04 |
| GB2452321B GB2452321B (en) | 2011-10-26 |
Family
ID=38617102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0717005A Expired - Fee Related GB2452321B (en) | 2007-08-31 | 2007-08-31 | Method of folding a sheet of packing material about a triangular-section group of cigarettes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2452321B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826992A (en) * | 2011-08-04 | 2014-05-28 | 佛克有限及两合公司 | Pack for cigarettes |
| WO2016030518A1 (en) * | 2014-08-29 | 2016-03-03 | Philip Morris Products S.A. | Container with wrapper with detachable tab |
-
2007
- 2007-08-31 GB GB0717005A patent/GB2452321B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826992A (en) * | 2011-08-04 | 2014-05-28 | 佛克有限及两合公司 | Pack for cigarettes |
| WO2016030518A1 (en) * | 2014-08-29 | 2016-03-03 | Philip Morris Products S.A. | Container with wrapper with detachable tab |
| CN106660695A (en) * | 2014-08-29 | 2017-05-10 | 菲利普莫里斯生产公司 | Container with wrapper with detachable tab |
| US20170203911A1 (en) * | 2014-08-29 | 2017-07-20 | Philip Morris Products S.A. | Container with wrapper with detachable tab |
| JP2017529287A (en) * | 2014-08-29 | 2017-10-05 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Container with wrapper with detachable tab |
| RU2682343C2 (en) * | 2014-08-29 | 2019-03-19 | Филип Моррис Продактс С.А. | Container with wrapper with detachable tab |
| CN106660695B (en) * | 2014-08-29 | 2019-04-09 | 菲利普莫里斯生产公司 | Containers with envelopes with removable tabs |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2452321B (en) | 2011-10-26 |
| GB0717005D0 (en) | 2007-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20170831 |