One-coat, waterborne coating system for untreated polypropylene based substrates
CA 2186834 C · Owner: Jackson, Michael L. · Inventors: Bugajski, James; Jackson, Michael L.; Kooy, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A one-coat, waterborne coating system for a polypropylene substrate comprises a mixture of an an acid functional acrylic resin latex, a latex of chlorinated polyolefin resin and a cross-, linking agent reactive with the acid functionality of the acrylic resin.
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 September 30, 1996 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2018.
- 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.