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Expired Canadian patentCanada

Process and method for preimpregnating reinforcing elements used to produce a composite material

CA 1333239 C · Owner: Institut Francais Du Petrole · Inventors: Huvey, Michel; Do, Anh Thuan

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

  • Granted November 29, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 29, 2011.
  • 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 21, 1989
GrantedNovember 29, 1994
Term endedNovember 29, 2011
Patent numberCA 1333239 C
Classification (IPC)C08J5/24 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedApril 21, 1989Patent grantedNov 29, 1994Term endedNov 29, 2011

Sources & verification

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