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Expired Canadian patentCanada

Use of spiperone as an immunosuppressant and anti-inflammatory agent

CA 2077907 C · Owner: Sharpe, Richard J. · Inventors: Galli, Stephen J.; Arndt, Kenneth A.; Sharpe, Richard J.

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

A method for suppressing an immune response or of treating inflammation in a mammal by treating the mammal with an effective amount of spiperone; and a composition including CNS-blindspiperone.

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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 March 13, 1991 and granted June 9, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 13, 1991
GrantedJune 9, 1998
Term endedMarch 13, 2011
Patent numberCA 2077907 C
Classification (IPC)A61K31/44 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 13, 1991Patent grantedJune 9, 1998Term endedMarch 13, 2011

Sources & verification

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