Expired Canadian patentCanada
Process for the production of cis-hydroxy trans-phenoxycyclopentylamines
CA 1338868 C · Owner: Merrell Dow Pharmaceuticals Inc. · Inventors: Leapheart, Theophilus F.
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 is directed to a process for the production of cis-hydroxy trans-phenoxycyclo-pentylamines and the intermediates produced in the process.
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
- Granted January 21, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 19, 1989
GrantedJanuary 21, 1997
Term endedJanuary 21, 2014
Patent numberCA 1338868 C
Classification (IPC)C07D263/52 +2 more
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.