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Canadian application, no grantCanada

Capsaicin receptor ligands

CA 2415606 A1 · Owner: Krause, James E. · Inventors: Hutchison, Alan; White, Geoffrey G.; Desimone, Robert W.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Disclosed are diaryl piperazines and related compounds. These compounds are selective modulators of capsaicin receptors including human capsaicin , receptors, that are therefore, useful in the treatment of a chronic and acute pain conditions, itch and urinary incontinence. Methods of treatment of such disorders and well as packaged pharmaceutical compositions are also provided. Compounds of the invention are also useful as probes for the localization of capsaicin receptors and as standards in assays for capsaicin receptor binding and capsaicin receptor mediated cation conductance. Methods of using the compounds in receptor localization studies are given.

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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 July 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 2001
GrantedNo grant recorded
Term endedJuly 20, 2021
Patent numberCA 2415606 A1
Classification (IPC)C07D213/74 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJuly 20, 2001Term endedJuly 20, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.