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Expired Canadian patentCanada

Connector attachment component

CA 2135679 C · Owner: Takano, Tsunesuke · Inventors: Takano, Tsunesuke; Sinzawa, Kouichi

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

A connector component for a wedge-base lamp includes an electrically insulative base having an upright inverted T-shaped electrically insulated frame member which defines a central interior rectangular space for receiving a wedge-base of a lamp. The insulated frame member also has an opposed pair of lateral shoulder pockets which open into a lower portion of the central interior rectangular space. A pair of opposed bulb guides integral with the frame member are disposed substantially midway of the interior rectangular space. The opposed bulb guides each define a respective arcuate concavity for receiving a portion of the wedge-base of the lamp therein so as to provide a holder for the …

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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

  • Filed November 14, 1994 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1994
GrantedDecember 15, 1998
Term endedNovember 14, 2014
Patent numberCA 2135679 C
Classification (IPC)H01R33/09 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 14, 1994Patent grantedDec 15, 1998Term endedNov 14, 2014

Sources & verification

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