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Expired Canadian patentCanada

A method for diagnosing cancer by detecting gpc3

CA 2497418 C · Owner: Perseus Proteomics Inc. · Inventors: Ito, Yukio; Tokita, Susumu; Midorikawa, Yutaka

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

Provided is a method for diagnosing cancer by detecting a novel cancer marker. Cancer can be diagnosed by detecting soluble glypican 3 in a test sample.

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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 September 4, 2003 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 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.
FiledSeptember 4, 2003
GrantedFebruary 7, 2012
Term endedSeptember 4, 2023
Patent numberCA 2497418 C
Classification (IPC)G01N33/57 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 4, 2003Patent grantedFeb 7, 2012Term endedSep 4, 2023

Sources & verification

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