Canadian application, no grantCanada
Benzofuran and benzothiophene derivatives as selective cox-2 inhibitors
CA 2437048 A1 · Owner: F. Hoffmann-La Roche Ag · Inventors: Mclaren, Kevin Lee; Tracy, Jahari Laurant; Smith, David Bernard
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to new benzofuran and benzothiophene derivatives their , process of preparation and their use as anti-inflammatory 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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 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.
FiledNovember 26, 2001
GrantedNo grant recorded
Term endedNovember 26, 2021
Patent numberCA 2437048 A1
Classification (IPC)C07D333/70 +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.