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Expired Canadian patentCanada

Aryl and heteroaryl propene amides, derivatives thereof and therapeutic uses thereof

CA 2497060 C · Owner: Reddy, E. Premkumar · Inventors: Reddy, M. V. Ramana; Reddy, E. Premkumar

CIPO record

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Abstract From the Canadian patent

Compounds useful as antiproliferative agents radioprotective agents and , cytoprotective agents including, for example, anticancer agents are provided , according to formula I : wherein ring A ring B,~~~~,X, R1, R2, R3, a, and b , are as defined herein.

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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 August 28, 2003 and granted May 20, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 28, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 28, 2003
GrantedMay 20, 2014
Term endedAugust 28, 2023
Patent numberCA 2497060 C
Classification (IPC)C07C233/09 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 28, 2003Patent grantedMay 20, 2014Term endedAug 28, 2023

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