Expired Canadian patentCanada
Excitatory amino acid antagonists
CA 2016908 C · Owner: Baron, Bruce M. · Inventors: Harrison, Boyd L.; Baron, Bruce M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a new class of excitatory amino acid antagonists which act at the NMDA receptor complex. The compounds are represented by the following formulae:
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 16, 1990 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 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.
FiledMay 16, 1990
GrantedJuly 31, 2001
Term endedMay 16, 2010
Patent numberCA 2016908 C
Classification (IPC)C07D215/48 +2 more
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.