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Expired Canadian patentCanada

Sealed beam lamp and method of manufacture

CA 1134895 A · Owner: Guide Corporation · Inventors: Gasparovic, George M.; Tyler, David O.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure:, In a lamp assembly having a rearwardly extending annular boss on the rear of the reflector about an opening in the reflector, a terminal socket sealed to the rear surface of the boss, said socket having a central portion through which the lamp terminals extend into the reflector and are sealed, an annular dish shaped portion integrally formed with the central portion extending outwardly and transversely to the longitudinal axis of the lamp assembly, sealing compound between the adjacent surfaces of the boss and the dish shaped portion of the terminal socket, the width of the dish shaped portion being larger than the width of the seating surface of the boss to …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1980
GrantedNovember 2, 1982
Term endedNovember 2, 1999
Patent numberCA 1134895 A
Classification (IPC)H01K7/00 +2 more

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedJune 16, 1980Patent grantedNov 2, 1982Term endedNov 2, 1999

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.