Process for the preparation of a non-crystalline anhydrate form of paroxetine hydrochloride
CA 2339857 A1 · Owner: Jacewicz, Victor Witold · Inventors: Jacewicz, Victor Witold; Ward, Neal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Paroxetine hydrochloride propan-2-ol solvate is desolvated to remove propan-2ol and prepare paroxetine hydrochloride anhydrate by heating the solvate mass and increasing the temperature of the heating as the amount of propan-2-ol remaining in the solvate mass decreases.
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 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2021.
- 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.