New polyether based monomers and highly cross-linked amphiphile resins
CA 2534616 C · Owner: Matrix Innovation Inc. · Inventors: Cote, Simon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cross-linked polyether which is obtained by polymerization , of a single type of monomer which is polymerizable with a PEG PPG, or poly , (THF) cross-linker , having an aldehyde end group wherein all the monomers of the cross-linked polyether , are identical. A method for preparing such cross-linked polyethers is also disclosed.
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 4, 2004 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2026.
- 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.