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Expired Canadian patentCanada

Razor mechanism

CA 2012703 C · Owner: Chen, Evan N. · Inventors: Chen, Evan N.

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 razor mechanism particularly suited for use with a flexible cartridge having at least one attachment member moveable in a direction substantially perpendicular to the longitudinal axis of the razor mechanism in response to the flexing of the razor cartridge during shaving.

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

  • Filed March 21, 1990 and granted May 3, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 1990
GrantedMay 3, 1994
Term endedMarch 21, 2010
Patent numberCA 2012703 C
Classification (IPC)B26B21/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 21, 1990Patent grantedMay 3, 1994Term endedMarch 21, 2010

Sources & verification

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