Imidazo2,1-bbenzothiazole-3-acetamide derivatives, their preparation and their use in therapeutics
CA 2074112 A1 · Owner: De Peretti, Danielle · Inventors: George, Pascal; Gibert, Jean-Francois; Le Galloudec, Odette
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound which is an imidazo2,1-bbenzothiazole-3acetamide derivative represented by formula (I) (I), in which X represents a hydrogen or halogen atom or a methyl ethyl, propyl, methoxy, ethoxy, methylthio methylsulfonyl, cyano or aminocarbonyl group R1 represents a hydrogen atom or, a C1-C4 alkyl group R2 represents a hydrogen atom or a, straight-chain branched or cyclic C1-C5 alkyl group, which is optionally substituted by one or more fluorine atoms by a, methoxy group, by a dimethylamino group or by a phenyl group or a prop-2-enyl group, or a prop-2-ynyl group or a phenyl, group, or R1 and R2 form together and with the nitrogen atom, to which they are attached a pyrrolidin-1-yl, …
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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 July 17, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2014.
- 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.