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Canadian application, no grantCanada

Hydroanthracene based compounds as anticancer agents

CA 2523019 A1 · Owner: Sairam, Kalapatapu V. V. M. · Inventors: Mukherjee, Rama; Sesha, Giri Venkatachalam; Dutta, Sankar Kumar

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention relates to the use of novel anthracene based compounds for the inhibition or prevention of the growth or multiplication of cancer cells and , to therapeutic compositions containing such compounds.The invention relates more specifically to the use of hydroanthracene based compounds for the inhibition and/or prevention of cancer of the colon pancreas, prostate, lung, larynx, ovary breast, glioblastoma, oral cavity, endothelial cells and leukemias. The agents of the invention form a distinct class distinct from , the anthracene, anthrone or anthraquinone derivatives.

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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 July 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 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.
FiledJuly 30, 2003
GrantedNo grant recorded
Term endedJuly 30, 2023
Patent numberCA 2523019 A1
Classification (IPC)C07C43/23 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 30, 2003Term endedJuly 30, 2023

Sources & verification

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