Novel heterocyclic compounds and their use as medicaments
CA 2389685 C · Owner: Chabrier De Lassauniere, Pierre-Etienne · Inventors: Auvin, Serge; Chabrier De Lassauniere, Pierre-Etienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns novel heterocyclic derivatives having a calpain inhibiting activity and/or an activity trapping reactive oxygen species of formula (I) wherein A, X, Y, R?1¿, R?2¿ and Het represent variable groups. The invention also concerns methods for preparing said compounds pharmaceutical preparations containing them and their therapeutic use in particular as calpain inhibitors and/or as trapping agents for reactive oxygen species whether selectively or not.
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 November 3, 2000 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2022.
- 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.