Fluorinated hydrophilic polymers
CA 2222355 A1 · Owner: Garcia, Gilbert · Inventors: Garcia, Gilbert; Morillon, Elisabeth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The fluorinated hydrophilic polymers, according to the invention are obtained through radical polymerization in a precipitant medium, of a mixture of monomers made up of at least one non-ionic hydrophilic monomer at least one lateral chain perfluoralkyl monomer and eventually, one or more ionizable or ionic hydrophilic monomers. These polymers are particularly useful as thickeners and additives in multi-purpose extinguishing foam concentrates.
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 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2019.
- 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.