Expired Canadian patentCanada
Cationically electrodepositable resin
CA 2012422 C · Owner: Tominaga, Akira · Inventors: Nishida, Reiziro; Tominaga, Akira
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cationically electrodepositable resin having in the molecule:, (1) a primary hydroxyl group (2) a cationic group, and, (3) at least one epoxy group-containing functional group represented by the following structural formulas (I) and (II).
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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 16, 1990 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 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.
FiledMarch 16, 1990
GrantedDecember 5, 2000
Term endedMarch 16, 2010
Patent numberCA 2012422 C
Classification (IPC)C08G59/00 +2 more
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.