Quinoline-2-carboxylic acid derivative and its use as excitatory amino acids antagonist
CA 2284710 A1 · Owner: Di Fabio, Romano · Inventors: Di Fabio, Romano; Bertani, Barbara; Alvaro, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The (+) enantiomer of E 4-(4-Acetylamino-phenylcarbamoylmethylene)-5,7dichloro-1,2,3,4-tetrahydro quinoline 2-carboxylic acid and salt thereof which are antagonist of excitatory amino acids to processes for their preparation, to pharmaceutical compositions containing them and to their use in medicine.
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 March 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2020.
- 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.