Excitatory amino acid receptor antagonists
CA 2432464 C · Owner: Escribano, Ana Maria · Inventors: Martinez Perez, Jose Antonio; Winter, Mark Alan; Bleisch, Thomas John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides novel compounds of Formula (I) and Formula (I(a)), or the pharmaceutically acceptable salts thereof; methods for treating neurological disorders and neurodegenerative diseases particularly pain and , migraine, comprising administering a compound of Formula (I) or Formula (I(a)); and processes for preparing compounds of Formula (I) or Formula (I(a)).
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 19, 2001 and granted July 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2023.
- 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.