Patent Yard Sign in
Expired Canadian patentCanada

Lamp base

CA 1101044 A · Owner: Wagner Electric Corporation · Inventors: Fitzgerald, James J.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract of the Disclosure, A baseless light bulb is locked into a one-piece molded base and the base provides mechanical and electrical connection of the light bulb to a circuit board.

Read the whole patent

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 May 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1978
GrantedMay 12, 1981
Term endedMay 12, 1998
Patent numberCA 1101044 A
Classification (IPC)H01K1/22 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedFeb 14, 1978Patent grantedMay 12, 1981Term endedMay 12, 1998

Sources & verification

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