Anti-amnestic agent
CA 1237987 A · Owner: Kabushiki Kaisha Yakult Honsha · Inventors: Hagiwara, Hisao; Yoshimoto, Tadashi; Tsuru, Daisuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: AN ANTI-AMNESTIC AGENT ABSTRACT OF THE DISCLOSURE, An anti-amnestic agent which comprises as an active ingredient thereof at least one prolinal derivative of the general formula: wherein A is a protective group for amino group in the field of amino acid chemistry and X is a residue of an amino acid in a pharmacologically active amount together with an excipient. This agent is less toxic and can safely be administered to patients orally or intravenously for the remedy of memory disorder.
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
- Granted June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- 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.