Thieno-triazolo-diazepine derivatives, a preparation process of the same and therapeutic compositions containing them
CA 2016551 C · Owner: Pommier, Jacques · Inventors: Braquet, Pierre; Esanu Andre; Laurent Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to thieno-triazolo-diazepine derivatives of the formula, (see fig.I) wherein Y stands for oxygene or sulphur and R stands for varlous substituents, to a preparation process of said compounds and to therapeutic compositions containing the same.
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 11, 1990 and granted September 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 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.