CA940998A - Tungsten halogen lamp - Google Patents

Tungsten halogen lamp

Info

Publication number: CA940998A
Authority: CA; Canada
Prior art keywords: halogen lamp; tungsten halogen; tungsten; lamp; halogen
Prior art date: 1971-01-22
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

CA133,007A

Other languages

English (en)

Other versions

CA133007S (fr

Inventor

James R. Coaton

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.)

EMI Group Ltd

Original Assignee

Thorn Electrical Industries Ltd

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.)

1971-01-22

Filing date

1972-01-24

Publication date

1974-01-29

1972-01-24 Application filed by Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd

1974-01-29 Application granted granted Critical

1974-01-29 Publication of CA940998A publication Critical patent/CA940998A/en

Status Expired legal-status Critical Current

Links

-1 Tungsten halogen Chemical class 0.000 title 1
229910052736 halogen Inorganic materials 0.000 title 1
229910052721 tungsten Inorganic materials 0.000 title 1
239000010937 tungsten Substances 0.000 title 1

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

CA133,007A 1971-01-22 1972-01-24 Tungsten halogen lamp Expired CA940998A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB299571		1971-01-22

Publications (1)

Publication Number	Publication Date
CA940998A true CA940998A (en)	1974-01-29

Family

ID=9749959

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA133,007A Expired CA940998A (en)	1971-01-22	1972-01-24	Tungsten halogen lamp

Country Status (12)

Country	Link
AT (1)	AT308899B (de)
AU (1)	AU458233B2 (de)
BE (1)	BE778347A (de)
CA (1)	CA940998A (de)
CH (1)	CH558083A (de)
DE (1)	DE2203087C3 (de)
FR (1)	FR2123009A5 (de)
GB (1)	GB1345901A (de)
IT (1)	IT946826B (de)
NL (1)	NL7200850A (de)
SE (1)	SE367511B (de)
ZA (1)	ZA72271B (de)

1971
- 1971-01-22 GB GB299571A patent/GB1345901A/en not_active Expired
1972
- 1972-01-17 ZA ZA720271A patent/ZA72271B/xx unknown
- 1972-01-19 SE SE00593/72A patent/SE367511B/xx unknown
- 1972-01-21 CH CH95072A patent/CH558083A/fr not_active IP Right Cessation
- 1972-01-21 AU AU38195/72A patent/AU458233B2/en not_active Expired
- 1972-01-21 BE BE778347A patent/BE778347A/xx unknown
- 1972-01-21 NL NL7200850A patent/NL7200850A/xx not_active Application Discontinuation
- 1972-01-21 FR FR7202076A patent/FR2123009A5/fr not_active Expired
- 1972-01-21 AT AT49372A patent/AT308899B/de not_active IP Right Cessation
- 1972-01-21 IT IT19693/72A patent/IT946826B/it active
- 1972-01-22 DE DE2203087A patent/DE2203087C3/de not_active Expired
- 1972-01-24 CA CA133,007A patent/CA940998A/en not_active Expired

Also Published As

Publication number	Publication date
GB1345901A (en)	1974-02-06
DE2203087C3 (de)	1978-07-20
BE778347A (fr)	1972-05-16
ZA72271B (en)	1972-09-27
IT946826B (it)	1973-05-21
NL7200850A (de)	1972-07-25
CH558083A (fr)	1975-01-15
AU458233B2 (en)	1975-02-20
AT308899B (de)	1973-07-25
DE2203087B2 (de)	1977-12-01
DE2203087A1 (de)	1972-08-03
FR2123009A5 (de)	1972-09-01
AU3819572A (en)	1973-07-26
SE367511B (de)	1974-05-27

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