Allyl ester resin composition and laminated sheet using the same
CA 2026199 A1 · Owner: Uchida, Hiroshi · Inventors: Noda, Satoshi; Yoshida, Masaharu; Onoda, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Resin compositions for laminated sheets and laminated sheets produced therefrom are disclosed the compositions, comprising at least one allyl ester resin composed of a polybasic acid and a polyhydric alcohol wherein an allyl ester, group of said resin is bonded to at least one of terminals thereof.
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
- Filed September 25, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2012.
- 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.