4-bicyclically substituted dihydropyridines, processes for their preparation and their use in medicaments
CA 2126397 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Bechem, Martin; Gross, Rainer; Hebisch, Siegbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4-Bicyclically substituted dihydropyridines processes, for their preparation and their use in medicaments A b s t r a c t, The invention relates to new 4-bicyclically substituted dihydropyridines of the general formula (I) (I), in which R1 to R5 have the meaning given in the description, processes for their preparation and their use in medicaments, in particular in agents for the treatment of cardiovascular diseases.
Read the whole patent
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 June 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2016.
- 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.