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Expired Canadian patentCanada

Method of manufacturing molding members

CA 1307891 C · Owner: Hashimoto Forming Industry Co. Ltd. · Inventors: Kimura, Kaoru

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, There is disclosed a method of manufacturing molding members, for instance for automobiles wherein, and elongate shaped body is prepared from synthetic resin material either by an extrusion process or by an, injection process and is subjected to a controlled heating so as to soften the interior resin material while preserving the hardness of the outer surface portion. A cutter blade is advanced into the shaped body while it is subjected to the controlled heating whereby the outer surface portion is urged and deformed inwardly to form a smooth end surface in continuous connection with remaining oute surface of the molding member.

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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 September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 28, 1988
GrantedSeptember 29, 1992
Term endedSeptember 29, 2009
Patent numberCA 1307891 C
Classification (IPC)B29C51/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedDec 28, 1988Patent grantedSep 29, 1992Term endedSep 29, 2009

Sources & verification

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