The activity-inhibitor and activity-potentiator for glutamic acid in the brain
CA 2212904 C · Owner: Ajinomoto Co. Inc. · Inventors: Kondo, Takashi; Torii, Kunio; Mallick, Hrudananda
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The drugs inhibiting the activity of excitatory neurotransmitter glutamic acid and the drug potentiating the activity of glutamic acid are provided. The activity-inhibitor for glutamic acid in the brain which, comprises L-lysine or its derivatives or L-arginine or its derivatives as an effective component, and the activity-potentiator for glutamic acid in the brain, which comprises glycine or its derivatives as an effective component.
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 11, 1997 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2019.
- 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.