GB2001193B - Cathode ray tubes - Google Patents

Cathode ray tubes

Info

Publication number: GB2001193B
Authority: GB; United Kingdom
Prior art keywords: cathode ray; ray tubes; tubes; cathode; ray
Prior art date: 1977-07-16
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

Application number

GB7829789A

Other versions

GB2001193A (en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

Priority date (The priority date 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 date listed.)

1977-07-16

Filing date

1978-07-13

Publication date

1982-01-20

1978-07-13 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1979-01-24 Publication of GB2001193A publication Critical patent/GB2001193A/en

1982-01-20 Application granted granted Critical

1982-01-20 Publication of GB2001193B publication Critical patent/GB2001193B/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
- H01J29/073—Mounting arrangements associated with shadow masks
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0722—Frame

GB7829789A 1977-07-16 1978-07-13 Cathode ray tubes Expired GB2001193B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2732306A DE2732306C2 (en)	1977-07-16	1977-07-16	Frame for a shadow mask of a color television picture tube

Publications (2)

Publication Number	Publication Date
GB2001193A GB2001193A (en)	1979-01-24
GB2001193B true GB2001193B (en)	1982-01-20

Family

ID=6014154

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7829789A Expired GB2001193B (en)	1977-07-16	1978-07-13	Cathode ray tubes

Country Status (6)

Country	Link
DE (1)	DE2732306C2 (en)
ES (1)	ES471761A1 (en)
FI (1)	FI70343C (en)
FR (1)	FR2397713A1 (en)
GB (1)	GB2001193B (en)
IT (1)	IT1119705B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL8003608A (en) *	1980-06-23	1982-01-18	Philips Nv	COLOR IMAGE TUBE.
US4547695A (en) *	1983-03-03	1985-10-15	Tektronix, Inc.	CRT Shadow mask assembly
US5742116A (en) *	1994-10-28	1998-04-21	Matsushita Electronics Corporation	Shadow mask frame structure with long-sides having higher mechanical strength

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2942129A (en) *	1954-08-27	1960-06-21	Du Mont Allen B Lab Inc	Cathode-ray tube structure
US2922063A (en) *	1956-11-07	1960-01-19	Sylvania Electric Prod	Target assembly for cathode ray tubes
US3569759A (en) *	1968-07-15	1971-03-09	Kentucky Electronics Inc	Shadow mask frame of sintered material for color tubes
US3663862A (en) *	1970-04-30	1972-05-16	Rca Corp	Method of rebuilding an evacuated electron tube
JPS4874783A (en) *	1971-12-30	1973-10-08

1977
- 1977-07-16 DE DE2732306A patent/DE2732306C2/en not_active Expired
1978
- 1978-07-10 FI FI782203A patent/FI70343C/en not_active IP Right Cessation
- 1978-07-11 FR FR7820607A patent/FR2397713A1/en active Granted
- 1978-07-11 IT IT25555/78A patent/IT1119705B/en active
- 1978-07-13 GB GB7829789A patent/GB2001193B/en not_active Expired
- 1978-07-14 ES ES471761A patent/ES471761A1/en not_active Expired

Also Published As

Publication number	Publication date
FI70343C (en)	1986-09-15
DE2732306A1 (en)	1979-02-01
ES471761A1 (en)	1979-01-16
DE2732306C2 (en)	1986-06-26
GB2001193A (en)	1979-01-24
IT7825555A0 (en)	1978-07-11
FR2397713A1 (en)	1979-02-09
FR2397713B1 (en)	1983-07-18
FI70343B (en)	1986-02-28
IT1119705B (en)	1986-03-10
FI782203A7 (en)	1979-01-17

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Legal Events

Date	Code	Title
1987-11-04	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1989-03-08	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1992-03-11	PCNP	Patent ceased through non-payment of renewal fee