Aryl-quinolyl-substituted 1,4-dihydropyridine-dicarboxylic acid derivatives, processes for their preparation and their use in drugs
CA 2080864 A1 · Owner: Goldmann, Siegfried · Inventors: GROß, RAINER; Hutter, Joachim; Hebisch, Siegbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aryl-quinolyl-substituted 1,4-dihydropyridine-dicarboxylic acid derivatives processes for their preparation and their use in drugs Abstract, The invention relates to novel aryl-quinolyl-substituted 1,4-dihydropyridine-di-carboxylic acid derivatives to processes for their preparation and to their use in drugs, especially for the preparation of drugs for the treatment of cardiovascular diseases. Le A 28 667
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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 October 19, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.