Triazolopyrimidine derivatives which are angiotensin ii receptor antagonists; processes for preparing them and pharmaceutical compositions containing them
CA 2072233 C · Owner: Nicolai, Eric · Inventors: Bru-Magniez, Nicole; Nicolai, Eric; Teulon, Jean-Marie
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 the derivatives of formula:, (See formula I), and to their tautomeric forms as well as to their addition salts and to their use in therapy in particular, for the treatment of cardiovascular diseases especially, for the treatment of hypertension cardiac insufficiency, and diseases of the arterial wall.
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 24, 1992 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2014.
- 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.