Substituted pyrazolyl benzenesulfonamides and pharmaceutical compositions containing the same
CA 2276946 A1 · Owner: Collins, Paul W. · Inventors: Khanna, Ish K.; Graneto, Matthew J.; Yu, Stella S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is related to substituted pyrazolyl benzenesulfonamides of the Formula I (see formula I) wherein R2 is selected from hydrido C1-C10-, alkyl, C1-C6-haloalkyl, C1-C6-alkoxycarbonyl cyano, carboxyl, C1-C6-, cyanoalkyl, aminocarbonyl C1-C6-alkylaminocarbonyl, C3-C7-, cycloalkylaminocarbonyl arylaminocarbonyl, C1-C6-carboxyalkylaminocarbonyl aryl-C1-C6- alkoxycarbonyl-C1-C10-alkylaminocarbonyl C1-C6-, aminocarbonylalkyl, C1-C6-carboxyalkyl C1-C6-alkoxycarbonylcyano-C2-C6-, alkenyl and C1-C6-hydroxyalkyl; wherein R3 is selected from hydrido C1-C10-, alkyl, cyano, C1-C6-hydroxyalkyl C3-C7-cycloalkyl, C1-C6-alkylsulfonyl, and halo; and wherein R4 is selected from optionally …
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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 November 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 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.