Propenecarboxylic acid amidoxime derivatives, a process for the preparation thereof, and pharmaceutical compositions containing the same
CA 2404128 C · Owner: N-Gene Research Laboratories Inc. · Inventors: Sumegi, Balazs; Takacs, Kalman; Literati Nagy, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A propenecarboxylic acid amidoxime derivative of the formula (see above formula), wherein R, R', R1 R2, R3, R4 and R5 are as defined in claim 1 or N-oxides , and/or , isomers and/or pharmaceutically suitable acid addition salts thereof. These compounds are for the treatment of a state connected with oxygen deficit and/or , energy deficit, or a disease based on PARP inhibition and/or a viral disease and/or a disease caused by a toxic effect.
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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 March 13, 2001 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2023.
- 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.