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Expired Canadian patentCanada

Method of producing molding members

CA 1323163 C · Owner: Nakajima, Hiroyuki · Inventors: Igarashi, Nobuo; Nakajima, Hiroyuki; Konno, Sadao

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Abstract From the Canadian patent

63-19,289, METHOD OF PRODUCING MOLDING MEMBERS Abstract of the Disclosure, A novel method of producing molding members for automobiles, formed at least partly of a synthetic resin material is disclosed. According to the method of the invention, synthetic resin material is extrusion molded into a continuous body with a substantially constant cross-section throughout the entire length thereof. A controlled amount of the material is removed from the predetermined location of the continuous body synchronously with the extrusion molding of the material, such that the cross-section of the continuous body varies in the longitudinal direction of the body. The continuous body subjected to the …

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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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
  • 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 19, 1988
GrantedOctober 19, 1993
Term endedOctober 19, 2010
Patent numberCA 1323163 C
Classification (IPC)B29C48/16 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedApril 19, 1988Patent grantedOct 19, 1993Term endedOct 19, 2010

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