Imidazolyl-alkenoic acids
CA 2018438 C · Owner: Finkelstein, Joseph Alan · Inventors: Weinstock, Joseph; Keenan, Richard Mc Culloch; Finkelstein, Joseph Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Angiotensin II receptor antagonists having the formula:, (see formula I), which are useful in regulating hypertension and in the treatment of congestive heart failure, renal failure and, glaucoma, pharmaceutical compositions including these antagonists, and methods of using these compounds to product angiotensin II receptor antagonism in mammals.
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 June 7, 1990 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 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.