Cationically electrodepositable resin composition
CA 2014017 C · Owner: Nishida, Reiziro · Inventors: Tominaga, Akira; Nishida, Reiziro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cationically electrodepositable resin composition containing as main component primary hydroxyl group-containing cationic resin obtained by reacting epoxy resin (A) having at least three epoxy group-containing functional groups represented by the following structural formula (I), with primary or secondary amine compound (B) containing primary hydroxyl group and optionally, further phenol compound (C) having at least one phenolic hydroxyl group in one molecule, as well as a cationically electro-depositable paint composition containing as main components said cationic resin and curing agent.
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 April 6, 1990 and granted September 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 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.