Method of producing shaped resin articles, and molds thereof
CA 1182971 A · Owner: Kuraray Co. Ltd. · Inventors: Ohfuji, Yoshio; Bando, Satoshi; Tanii, Hirokuni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liquid curable resins, such as unsaturated polyester resins, unsaturated epoxy resins, polymethyl methacrylates are cured in a mold, the casting surface of which is made, of a vinyl alcohol-olefin copolymer to produce a shaped resinous article with an improved and even surface gloss.
Read the whole patent
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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
- 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.