Compositions formed from chlorinated polymers and articles manufactured using these compositions
CA 2457221 A1 · Owner: Hannecart, Etienne · Inventors: Tiffes, Dominique; Robin, Jean-Jacques; Hannecart, Etienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions comprising one or more polymers chosen from chlorinated polymers and one or more salts of bismuth and of a carboxylic acid chosen from saturated hydroxy- and aminomonocarboxylic acids which have a total number of hydroxyl and amine groups with respect to the number of carbon atoms of greater than 1/10 and from saturated nonhydroxylated and nonaminated polycarboxylic acids. Articles or parts of articles manufactured using these compositions.
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 August 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2024.
- 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.