GB9814979D0 - Electrode stuctures and lamps - Google Patents

Electrode stuctures and lamps

Info

Publication number
GB9814979D0
GB9814979D0 GBGB9814979.2A GB9814979A GB9814979D0 GB 9814979 D0 GB9814979 D0 GB 9814979D0 GB 9814979 A GB9814979 A GB 9814979A GB 9814979 D0 GB9814979 D0 GB 9814979D0
Authority
GB
United Kingdom
Prior art keywords
stuctures
lamps
electrode
electrode stuctures
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
Application number
GBGB9814979.2A
Other versions
GB2328075B (en
GB2328075A (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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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.)
Filing date
Publication date
Priority claimed from GBGB9716640.9A external-priority patent/GB9716640D0/en
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB9814979A priority Critical patent/GB2328075B/en
Publication of GB9814979D0 publication Critical patent/GB9814979D0/en
Publication of GB2328075A publication Critical patent/GB2328075A/en
Application granted granted Critical
Publication of GB2328075B publication Critical patent/GB2328075B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/09—Hollow cathodes
GB9814979A 1997-08-07 1998-07-13 Electrode stuctures and lamps Expired - Fee Related GB2328075B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9814979A GB2328075B (en) 1997-08-07 1998-07-13 Electrode stuctures and lamps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9716640.9A GB9716640D0 (en) 1997-08-07 1997-08-07 Electrode structures and lamps
GB9814979A GB2328075B (en) 1997-08-07 1998-07-13 Electrode stuctures and lamps

Publications (3)

Publication Number Publication Date
GB9814979D0 true GB9814979D0 (en) 1998-09-09
GB2328075A GB2328075A (en) 1999-02-10
GB2328075B GB2328075B (en) 2002-05-15

Family

ID=26312020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9814979A Expired - Fee Related GB2328075B (en) 1997-08-07 1998-07-13 Electrode stuctures and lamps

Country Status (1)

Country Link
GB (1) GB2328075B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515637C2 (en) 2000-01-24 2001-09-17 Auralight Ab Security structure for fluorescent lamps

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24811C (en) * 1927-10-22
GB400320A (en) * 1932-05-23 1933-10-26 Claude Neon Electrical Product Electrode for neon type of luminous electric discharge tube
GB670292A (en) * 1949-05-27 1952-04-16 Gen Electric Co Ltd Improvements in or relating to tubular electric discharge devices, especially cold cathode discharge lamps
IT1229876B (en) * 1989-02-14 1991-09-13 Berti Walter E Berti Elena METHOD FOR MANUFACTURING CATHODES FOR LUMINOUS SIGNS AND, IN GENERAL, FOR LUMINESCENT LAMP TUBES AND, IN PARTICULAR, FOR TUBES FILLED WITH NEON AND ARGON GASES

Also Published As

Publication number Publication date
GB2328075B (en) 2002-05-15
GB2328075A (en) 1999-02-10

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160713