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Expired Canadian patentCanada

Slide switches

CA 2103641 C · Owner: Kabushiki Kaisha T An T · Inventors: Takano, Tsunesuke

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

Slide switches include an electrically insulated support housing having opposing pairs of side walls which establish an interior space. An upper wall is joined to an upper edge of the opposing pairs of side walls to close an upper end of the interior space and defines an opening in communication with the interior cavity. An electrically insulated slide body which is slidably disposed within the interior space of the support housing so as to be movable reciprocally between at least first and second positions therewithin. The slide body also defines a cavity and has a knob which projects through the opening defined in the upper wall of the support housing to allow movement of the slide body …

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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 August 9, 1993 and granted June 3, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 9, 1993
GrantedJune 3, 1997
Term endedAugust 9, 2013
Patent numberCA 2103641 C
Classification (IPC)H01H15/06 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 9, 1993Patent grantedJune 3, 1997Term endedAug 9, 2013

Sources & verification

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