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Canadian application, no grantCanada

Method and composition for controlling proliferation of cells

CA 2091759 A1 · Owner: Bredesen, Dale E. · Inventors: Bredesen, Dale E.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A method and composition for reversibly increasing the proliferation of cells in vitro. Cell populations are treated in vitro) with antisense oligonucleotides to a tumor suppressor gene such as the retinoblastoma (Rb) gene. Such treatment inhibits expression of the tumor suppressor gene product and results in a reversible increse in the proliferation of the cell population.

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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 11, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 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.
FiledSeptember 11, 1991
GrantedNo grant recorded
Term endedSeptember 11, 2011
Patent numberCA 2091759 A1
Classification (IPC)C12N5/02 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedSep 11, 1991Term endedSep 11, 2011

Sources & verification

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