Expired Canadian patentCanada
Process for preparing new hydroxy alkoxy 4- phenylpropylindole derivatives and the salts thereof
CA 1269107 C · Owner: Guillaume, Jacques · Inventors: Clemence, Francois; Guillaume, Jacques; Hamon, Gilles
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 26, 1986
GrantedMay 15, 1990
Term endedMay 15, 2007
Patent numberCA 1269107 C
Classification (IPC)C07D209/14 +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.