Carboxylic acid derivative and salt thereof
CA 2442319 C · Owner: Clark, Richard · Inventors: Emori, Eita; Shinoda, Masanobu; Inoue, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a novel carboxylic acid compound, a salt thereof or a hydrate of them useful as an insulin sensitizer, and a medicament comprising the compound as an active ingredient. That is, the present invention provides a carboxylic acid compound represented by the following formula a salt thereof, an ester thereof or a hydrate of them. (see formula I), Wherein R1 represents a hydrogen atom hydroxyl group, halogen, carboxyl group or a C1-6 alkyl group etc. each of which may have one or more substituents; L represents a single bond or , a C1-6 alkylene group, a C2-6 alkenylene group or a C2-6 alkynylene group, each of which may have one or more substituents; M …
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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
- Filed April 18, 2002 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2024.
- 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.