Fiber reinforced thermoplastic resin shaped article and its preparation
CA 2085441 C · Owner: Matubara, Shigeyoshi · Inventors: Hara, Takahisa; Matsumoto, Masahito; Kitayama, Takeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a fiber reinforced thermoplastic resin shaped article prepared by supplying a preheated fiber reinforced thermoplastic resin sheet between upper and lower molds, positioning the upper and lower molds so that clearance between the upper and lower molds when the mold clamping is completed is larger than the thickness of the unpreheated fiber reinforced thermoplastic resin sheet. A molten thermoplastic resin is supplied in a recess provided in at least one of the upper and lower molds through a resin passage provided in the mold so that a portion formed from the molten thermoplastic resin in the recess is integrated by fusion with a portion formed from 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
- Filed December 15, 1992 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.