Indene derivatives as pharmaceutical agents
CA 2521883 C · Owner: Aquinox Pharmaceuticals (Canada) Inc. · Inventors: Noren, Bradley; Raymond, Jeffery R.; He, Yuehua
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (Ia): wherein R1, R2 R3, R4a, R4b, R5 and R6 are defined , herein as well as other indene derivatives are disclosed herein. Pharmaceutical compositions containing the compounds and methods of using the compounds are also disclosed.
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 April 15, 2004 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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.