Capped pyrazinoylguanidine sodium channel blockers
CA 2534682 C · Owner: Parion Sciences, Inc. · Inventors: Johnson, Michael R.; Sargent, Bruce J.; Molino, Bruce F.
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 compounds which are represented by the formula: , (see formula I), where the structural variables are defined herein. The present invention also relates to uses of , these compounds for a variety of medical purposes.
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 August 18, 2004 and granted February 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2026.
- 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.