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Canadian application, no grantCanada

Analgesic methods using synthetic catalysts for the dismutation of superoxide radicals

CA 2294155 A1 · Owner: G.D. Searle & Co. · Inventors: Salvemini, Daniela

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Synthetic low molecular weight catalysts for the dismutation of superoxide are potent analgesics that are effective in elevating the pain threshold in hyperalgesic conditions such as arthritis and also operate to prevent or , reserve tolerance to opioid analgesics.

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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 June 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.
FiledJune 15, 1998
GrantedNo grant recorded
Term endedJune 15, 2018
Patent numberCA 2294155 A1
Classification (IPC)C07F13/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 15, 1998Term endedJune 15, 2018

Sources & verification

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