Antidiabetic composition comprising isocarbacyclin derivative
CA 1320447 C · Owner: Teijin Limited · Inventors: Horiai, Haruo; Tanaka, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antidiabetic composition comprising as the active ingredient an isocarbacyclin derivative of the formula I:, I, wherein R1 is hydrogen atom an alkyl group or one equivalent, of cation; R2 is hydrogen atom or methyl group; R3 is a straight-chain or branched-chain alkyl alkenyl or alkynyl, group, a cycloalkyl phenyl or phenoxy group which may be, substituted or a straight-chain or branched-chain alkyl group which is substituted by the above mentioned cycloalkyl phenyl or phenoxy group which may be substituted; n is 0 or 1, provided that when R3 is n-pentyl, R2 is methyl or n is 1.
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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 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 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.
Timeline
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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.