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Expired Canadian patentCanada

Method for isolation of rna from formalin-fixed paraffin-embedded tissue specimens

CA 2394618 C · Owner: Swenson, Steven · Inventors: Danenberg, Kathleen; Danenberg, Peter; Swenson, Steven

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

Methods are disclosed for rapid, reliable and simple isolation of RNA from formalin-fixed paraffin-embedded tissue samples. RNA purified in this manner can be used to monitor gene expression levels. The tissue sample can be a tumor or other pathological tissue.

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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 October 31, 2000 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 2000
GrantedMay 7, 2013
Term endedOctober 31, 2020
Patent numberCA 2394618 C
Classification (IPC)C12N15/10 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedOct 31, 2000Patent grantedMay 7, 2013Term endedOct 31, 2020

Sources & verification

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