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Expired Canadian patentCanada

Process for overmoulding a thermoplastic over rubber

CA 2174895 C · Owner: Elf Atochem S.A. · Inventors: Betremieux, Isabelle; Tron, Loic; Germain, Jean-Yves

CIPO record

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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 April 24, 1996 and granted June 4, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 24, 1996
GrantedJune 4, 2002
Term endedApril 24, 2016
Patent numberCA 2174895 C
Classification (IPC)B29C70/88 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 24, 1996Patent grantedJune 4, 2002Term endedApril 24, 2016

Sources & verification

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