Sulfonamides as potassium channel blockers
CA 2495956 A1 · Owner: Atkinson, Robert Nelson · Inventors: Atkinson, Robert Nelson; Reed, Aimee D.; Mcnaughton-Smith, Grant Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds, compositions and methods are provided which are useful in the treatment of diseases through the modulation of potassium ion flux through voltage-dependent potassium channels. More particularly the invention , provides sulfonamides, and compositions and methods utilizing sulfonamides that are useful in the treatment of diseases by blocking potassium channels associated with the onset or recurrence of the indicated conditions. Exemplary diseases treatable with the compounds, compositions and methods of the invention include sickle cell disease and glaucoma.
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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 August 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2025.
- 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.