High solids coating composition
CA 2176556 A1 · Owner: E. I. Du Pont De Nemours And Company · Inventors: Johnson, Jeffery W.; Barsotti, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating composition based on low molecular weight anhydride resin having pendant non-cyclic anhydride moieties epoxy resin, active catalyst and surface tension reducing agent exhibits sprayability at low VOC and excellent performance characteristics as a coating.
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 December 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2016.
- 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.