Pyrrolidine derivatives
CA 1115212 A · Owner: Hoffmann-La Roche Limited · Inventors: Aschwanden, Werner; Kyburz, Emilio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with a medicament containing a pyrrolidine derivative of the general formula (I), wherein R1 represents the o-methoxybenzoyl m-methoxybenzyl, p-methoxybenzyl or p-fluorobenzyl group, which can be used in the control or prevention of cerebral insufficiency or in the improvement of intellectual capacity.
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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
- 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.