Preparation of cartilage extracts using organic solvents
CA 2435586 A1 · Owner: Les Laboratoires Aeterna Inc. · Inventors: Lachance, Yves; Auger, Serge; Lessard, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a process by which organic solvent-containing solutions are used in lieu of pure water for the preparation of cartilage extracts and fractions thereof. Different organic solvents have been tested for the preparation of extracts containing biologically active components. Amongst the tested solvents, trimethylamine 40% (in water) was selected as a good alternative solvent to pure water particularly in recovering an anti-, proliferative activity against HUVECs.
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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 January 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 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.