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Expired Canadian patentCanada

Cell stress transcriptional factors

CA 2096975 C · Owner: Rabindran, Sridhar · Inventors: Clos, Joachim; Rabindran, Sridhar; Westwood, Timothy J.

CIPO record

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Abstract From the Canadian patent

The present invention relates to DNA sequence coding for part or all of the heat shock transcription factor or heat shock factor (HSF) proteins derived from humans and Drosophila and the proteins , encoded by these sequences. The present invention also includes methods for detecting HSF in a biological sample. The presence of HSF in the nucleus of a colt can be detected with specific anti-HSF antibody reagents. The presence of such HSF proteins in the nucleus indicates a stressed condition including diseases. Furthermore, the presence of multimeric HSF in the crude ar fractionated cell extract is indicative of a stressed state.

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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 November 22, 1991 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 22, 1991
GrantedApril 22, 2003
Term endedNovember 22, 2011
Patent numberCA 2096975 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 22, 1991Patent grantedApril 22, 2003Term endedNov 22, 2011

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