Heat-curable resinous coating composition
CA 2012536 C · Owner: Isozaki, Osamu · Inventors: Miyamoto, Yuzo; Isozaki, Osamu; Fukuda, Mitsuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat-curable resinous coating composition comprising as a binder component, (A) 5 to 90 % by weight of a hydroxyl-containing resin selected from hydroxyl-containing acrylic resins and hydroxyl-containing polyester resins (B) 5 to 50 % by weight of an amino resin and, (C) 1 to 90 % by weight of a crosslinkable resin selected from (C-a) polyfunctional resins having a number average molecular weight of at least 1000 and containing at least two carboxyl groups and at least two epoxy groups on an average per molecule and (C-b) polyorganosiloxanes having a number average molecular weight of at least 500 and containing at least two silanol groups on an average per molecule and if required. …
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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 March 19, 1990 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.