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Expired Canadian patentCanada

Method for producing pultruded components

CA 2628935 C · Owner: Huang, Icheng · Inventors: Coffee, Harry D.; Kharchenko, Semen; Huang, Icheng

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

A method for producing a pultruded component (50) includes providing a plurality of fiber tows (110) each formed of a plurality of fibers. The method also includes providing a first chamber (154) and a second chamber (156) for wetting the plurality of fiber tows (110) with a polymeric resin precursor (141). The method further includes pulling the plurality of fiber tows (110) through a first chamber (154) to wet their exterior surfaces with the polymeric resin precursor (141), pulling the plurality of fiber tows (110) through a second chamber (156) to wet the plurality of fibers within each tow and pulling the wetted plurality of tows (110) and fibers through a curing die (160) to …

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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 August 21, 2006 and granted October 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 21, 2006
GrantedOctober 14, 2014
Term endedAugust 21, 2026
Patent numberCA 2628935 C
Classification (IPC)B29C70/52 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 21, 2006Patent grantedOct 14, 2014Term endedAug 21, 2026

Sources & verification

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