3-quinuclidinyl-n-biarylamides as nicotinic acetylcholine receptor agonists
CA 2534003 C · Owner: Methfessel, Christoph · Inventors: Telan, Leila; Boess, Frank-Gerhard; Flessner, Timo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to N-biarylamides methods for production and use , thereof for the production of medicaments for the treatment and/or prophylaxis of diseases and , for improvement in cognition, concentration power learning power and/or , memory. , The N-biarylamides have the structures: (see formula I), wherein R1 is a group of the formula -NR2-CO-NR3R4 -NR 2-CO-CO-OR5, -NH-SO2R6, -SO2NHR7 OR -NH-CO-R8.
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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 July 19, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2026.
- 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.