Sulfonamide-substituted compounds, process for their preparation, their use as a medicament or diagnostic, and a medicament comprising them
CA 2227930 A1 · Owner: Brendel, Joachim · Inventors: Gerlach, Uwe; Brendel, Joachim; Weidmann, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula I (see fig. I) in which R(1) to R(8) and X have the meanings indicated in the claims, are useful for the production of medicaments having K+channel-blocking action; in particular for the production of a medicament for the treatment or prophylaxis of stimulated gastric acid secretion; of ulcers of the stomach and of the intestinal region; of reflux esophagitis; of diarrhea; of all types of arrhythmias including ventricular , and supraventricular arrhythmias; and of reentry arrhythmias and for the prophylaxis of sudden heart death as a result of ventricular fibrillation.
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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 January 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2020.
- 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.