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Expired Canadian patentCanada

2-oxo-1,3,5-perhydrotriazapine derivatives useful in the treatment of hyper-proliferative, angiogenesis, and inflammatory disorders

CA 2516624 C · Owner: Boyer, Stephen · Inventors: Chen, Jianqing; Smith, Roger A.; Phillips, Barton

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

This invention relates to novel diaryl ureas of formula (I) pharmaceutical , compositions containing such compounds and the use of those compounds or compositions for treating hyper-proliferative and angiogenesis disorders as a , sole agent or in combination with cytotoxic therapies.

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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 1, 2004 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2026.
  • 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 1, 2004
GrantedMay 14, 2013
Term endedMarch 1, 2024
Patent numberCA 2516624 C
Classification (IPC)C07D401/12 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 1, 2004Patent grantedMay 14, 2013Term endedMarch 1, 2024

Sources & verification

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