Compounds containing a fused bicyclic ring and processes therefor
CA 2124375 C · Owner: Bristol-Myers Squibb Company · Inventors: Kronenthal, David R.; Robl, Jeffrey A.; Godfrey, Jollie D. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula, (See formula I) wherein X is O or S-(O)t; n is one or two; m is zero or one; Y is CH2, O, or S-(O)t provided that Y is O or S-(O)t only when m is one; and A is (See formula II or III), are dual inhibitors of NEP and ACE. Compounds wherein A is, (See formula IV or V), are selective ACE inhibitors. Also disclosed are methods of preparation and intermediates.
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 May 26, 1994 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2016.
- 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.