Heat curable cathodic electrocoating composition
CA 2080734 A1 · Owner: Huemke, Klaus · Inventors: Hoffmann, Gerhard; Gilbert, John A.; Huemke, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
O.Z. 0062/02112, Abstract of the Disclosure: A heat curable coating composition, in particular for cathodic electrocoating comprises, (A) from 50 to 95 % by weight of a chain or step growth polymerization product having functional groups and (B) from 50 to 5 % by weight of a mixture of polymethylenepolyphenyl isocyanates which contains less than 25 % of diphenylmethane diisocyanates.
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 October 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2014.
- 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.