Expired Canadian patentCanada
Derivatives of .beta.-amino-gamma-trimethylammonio-butyrate and their production and use
CA 1318875 C · Owner: Asai, Mitsuko · Inventors: Kanamaru, Tsuneo; Shinagawa, Susumu; Asai, Mitsuko
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A compound of the formula:, wherein R1 is hydrogen or acyl, R2 is hydroxy, alkoxy or amino is useful as an antidiabetic agent.
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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 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
- 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 24, 1984
GrantedJune 8, 1993
Term endedJune 8, 2010
Patent numberCA 1318875 C
Classification (IPC)C07C229/26 +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.