Expired Canadian patentCanada
Glutamine derivatives
CA 1190240 A · Owner: Mitsubishi Chemical Industries, Limited · Inventors: Munakata, Hiroaki; Kobayashi, Makio; Tsurufuji, Makoto
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Glutamine derivatives and non-toxic salts thereof have been found to have immunomodulating activities.
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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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 1981
GrantedJuly 9, 1985
Term endedJuly 9, 2002
Patent numberCA 1190240 A
Classification (IPC)C07C205/56
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.