Benzyl (idene)-lactams and their use as 5ht1-receptor ligands
CA 2435467 A1 · Owner: Pfizer Products Inc. · Inventors: Chappell, Phillip Branch; Howard, Harry Ralph Jr.; Sprouse, Jeffrey Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to compounds of the formula I wherein 1) Y is a bridge containing bridging heteroatoms and to their medicinal use; 2) As serotonin 1 (5-HT1) receptor ligands, particularly in psychotherapeutic agents.
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 November 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2023.
- 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.