Substituted mono- and bipyridylmethylpyridones
CA 2123243 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Denzer, Dirk; Kazda, Stanislav; Hanko, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Substituted mono- and bipyridylmethylpyridones Abstract, Substituted mono- and bipyridylmethylpyridones are prepared either by reaction of pyridones with mono- or bipyridylmethylhalogen compounds or by reaction of pyridone-substituted halogenopyridines with tetrazolylphenylboronic acids. The substituted mono- and bipyridylmethylpyridones can be employed as active compounds in medicaments, in particular for the treatment of arterial hypertension and atherosclerosis.
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 May 10, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 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.