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Expired Canadian patentCanada

Gene expression profiling in biopsied tumor tissues

CA 2478850 C · Owner: Kiefer, Michael C. · Inventors: Baker, Joffre B.; Kiefer, Michael C.; Walker, Michael G.

CIPO record

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Abstract From the Canadian patent

The invention concerns sensitive methods to measure mRNA levels in biopsied tumor tissues, including archived paraffin-embedded biopsy material. Th invention also concerns breast cancer gene sets important in the diagnosis and treatment of breast cancer, and methods for assigning the most optimal treatment options to breast cancer patient based upon knowledge derived from gene expression studies.

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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 12, 2003 and granted February 27, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 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.
FiledMarch 12, 2003
GrantedFebruary 27, 2018
Term endedMarch 12, 2023
Patent numberCA 2478850 C
Classification (IPC)C12Q1/68 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 12, 2003Patent grantedFeb 27, 2018Term endedMarch 12, 2023

Sources & verification

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