USD271338S - Portable air filtration unit - Google Patents
Portable air filtration unit Download PDFInfo
- Publication number
- USD271338S USD271338S US06/244,485 US24448581F USD271338S US D271338 S USD271338 S US D271338S US 24448581 F US24448581 F US 24448581F US D271338 S USD271338 S US D271338S
- Authority
- US
- United States
- Prior art keywords
- filtration unit
- air filtration
- portable air
- portable
- unit
- 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.)
- Expired - Lifetime
Links
- 238000001914 filtration Methods 0.000 title claims description 3
Images
Description
FIG. 1 is a perspective view taken from the front _and left side of a portable air filtration unit showing _my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a right side elevational view thereof; and
FIG. 6 is a top plan view thereof.
Claims (1)
- The ornamental design for a portable air filtration unit, as shown and described.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA16-09-80-2 | 1980-09-16 | ||
| CA47783F CA47783S (en) | 1980-09-16 | 1980-09-16 | Portable air filtration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD271338S true USD271338S (en) | 1983-11-08 |
Family
ID=49166521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/244,485 Expired - Lifetime USD271338S (en) | 1980-09-16 | 1981-03-16 | Portable air filtration unit |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | USD271338S (en) |
| CA (1) | CA47783S (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD275616S (en) | 1982-03-23 | 1984-09-18 | Litton Systems, Inc. | Pressure regulator control module for self-contained breathing apparatus |
| USD304854S (en) | 1988-04-27 | 1989-11-28 | Stackhouse Associates | Portable air filter |
| USD1056183S1 (en) * | 2022-06-28 | 2024-12-31 | Ningbo Woofun New Material Technology Co., Ltd | Filter |
| USD1057136S1 (en) * | 2024-08-26 | 2025-01-07 | Hongju Zhang | Indoor ventilation filter of dryer |
| USD1084293S1 (en) * | 2021-03-12 | 2025-07-15 | Seoul National University R&Db Foundation | Anti sleep apnea apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1196539A (en) | 1915-09-28 | 1916-08-29 | Edward I Goldberg | Air-purifier. |
| US1298404A (en) | 1918-02-09 | 1919-03-25 | Hippolyte Romanoff | Antigas-respirator. |
| US3861894A (en) | 1972-10-13 | 1975-01-21 | Bio Dynamics Inc | Portable clean-air generator |
-
1980
- 1980-09-16 CA CA47783F patent/CA47783S/en not_active Expired
-
1981
- 1981-03-16 US US06/244,485 patent/USD271338S/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1196539A (en) | 1915-09-28 | 1916-08-29 | Edward I Goldberg | Air-purifier. |
| US1298404A (en) | 1918-02-09 | 1919-03-25 | Hippolyte Romanoff | Antigas-respirator. |
| US3861894A (en) | 1972-10-13 | 1975-01-21 | Bio Dynamics Inc | Portable clean-air generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD275616S (en) | 1982-03-23 | 1984-09-18 | Litton Systems, Inc. | Pressure regulator control module for self-contained breathing apparatus |
| USD304854S (en) | 1988-04-27 | 1989-11-28 | Stackhouse Associates | Portable air filter |
| USD1084293S1 (en) * | 2021-03-12 | 2025-07-15 | Seoul National University R&Db Foundation | Anti sleep apnea apparatus |
| USD1056183S1 (en) * | 2022-06-28 | 2024-12-31 | Ningbo Woofun New Material Technology Co., Ltd | Filter |
| USD1057136S1 (en) * | 2024-08-26 | 2025-01-07 | Hongju Zhang | Indoor ventilation filter of dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CA47783S (en) | 1981-01-19 |
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