Diol metabolites of 7-phenyl-1,2,4-triazolo(2,3-c)pyrimidines-5-amines
CA 2006354 A1 · Owner: Walsh, Gerald M. · Inventors: Burton, Earl G.; Walsh, Gerald M.; Chengelis, Christopher P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel glycol of a triazolopyrimidine diuretic which is a metabolite and which exhibits fewer cardiotoxic side effects than the parent compound, but with no decrease in diuretic activity. The invention further provides for compositions incorporating the metabolite and methods of, its use as well as pharmaceutically acceptable salts thereof.
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 December 21, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2011.
- 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.