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Expired Canadian patentCanada

Textile for mounting on canvas and method of fabrication therefor

CA 2013520 C · Owner: Groshens, Pierre · Inventors: Groshens, Pierre

CIPO record

Overview

Drawings and full text

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 March 30, 1990 and granted May 10, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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 30, 1990
GrantedMay 10, 1994
Term endedMarch 30, 2010
Patent numberCA 2013520 C
Classification (IPC)D04H13/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 30, 1990Patent grantedMay 10, 1994Term endedMarch 30, 2010

Sources & verification

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