Canadian application, no grantCanada
Process for the preparation of (r)-alpha-(2,3-dimethoxyphenyl)-1-2-(4 -fluorophenyl)ethyl-4-piperidinemethanol
CA 2492600 A1 · Owner: Aventis Pharma Deutschland Gmbh · Inventors: Bina, Alan G.; Daugs, Edward D.; Guillamot, Gerard
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides various processes for the preparation of (R)-.alpha.-(2,3-dimethoxyphenyl)-1-2-(fluorophenyl)ethyl-4piperidinemethanol. These processes, may be characterized by scheme (A).
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 March 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 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.
FiledMarch 11, 1999
GrantedNo grant recorded
Term endedMarch 11, 2019
Patent numberCA 2492600 A1
Classification (IPC)C07D211/22
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.