Sulfonylbenzyl-substituted benzo- and pyridopyridones
CA 2095801 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Hubsch, Walter; Beuk, Martin; Hanko, Rudolf H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sulfonylbenzyl-substituted benzo- and pyridopyridones A b s t r a c t, Sulfonylbenzyl-substituted benzo- and pyridopyridones are prepared by reacting corresponding benzo- and pyridopyridones with sulphonylbenzyl compounds. The sulphonylbenzyl-substituted benzo- and pyridopyridones can be employed as active compounds in medicaments in, particular for the treatment of arterial hypertension and atherosclerosis. Le A 29 060
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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 May 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2015.
- 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.