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Expired Canadian patentCanada

N, 3-disubstituted 2-oxindole-1-carboxamides as analgesic and antiinflammatory agents

CA 1255658 A · Owner: Pfizer Limited · Inventors: Kadin, Saul B.

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Abstract From the Canadian patent

N,3-DISUBSTITUTED 2-OXINDOLE-1-CARBOXAMIDES AS ANALGESIC AND ANTIINFLAMMATORY AGENTS Abstract, Certain 2-oxindole-1-carboxamide compounds having an acyl substituent at the 3-position and also, further suhstituted on the carboxamide nitrogen by an alkyl, cycloalkyl, phenyl or substituted phenyl group, are inhibitors of the cyclooxygenase (CO) and lipoxygenase (LO) enzymes, and are useful as analgesic and antiinflammatory agents in mammalian subjects. These 2-oxindole-1-carboxamide compounds are of particular value for ameliorating pain in human patients recovering from surgery or trauma and, alleviating the symptoms of chronic diseases such as, rheumatoid arthritis and osteoarthritis in …

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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

  • Granted June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 2, 1985
GrantedJune 13, 1989
Term endedJune 13, 2006
Patent numberCA 1255658 A
Classification (IPC)C07D209/34 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMay 2, 1985Patent grantedJune 13, 1989Term endedJune 13, 2006

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