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Expired Canadian patentCanada

Power interrupting component control circuit feeding device

CA 2136276 C · Owner: Piton, Michel · Inventors: Piton, Michel

CIPO record

Overview

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

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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 21, 1994 and granted October 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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 21, 1994
GrantedOctober 14, 2003
Term endedNovember 21, 2014
Patent numberCA 2136276 C
Classification (IPC)H01H9/54 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 21, 1994Patent grantedOct 14, 2003Term endedNov 21, 2014

Sources & verification

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