Pyridone nitriles useful in treating cardiovascular disease
CA 2025967 A1 · Owner: Wheeler, Thomas N. · Inventors: Wheeler, Thomas N.; Shaffer, Joel E.; Kenakin, Terrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pyridones of formula (I) for treating congestive heart failure:, (I), wherein:, R1 and R2 are a variety of phenyl substituents L is a, divalent alkylene or amide containing alkylene linking group. Pharmaceutical composition, methods for their use in treating cardiovascular conditions, processes used in synthesis and intermediates used in such processes.
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 September 21, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2012.
- 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.