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Canadian application, no grantCanada

Self-extinguishing recombinases, nucleic acids encoding them and methods of using the same

CA 2405768 A1 · Owner: Dana-Farber Cancer Institute · Inventors: Silver, Daniel P.; Livingston, David M.

CIPO record

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

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Abstract From the Canadian patent

Nucleic acid molecules comprising at least a first signal site and a recombinase gene operably linked to an expression control sequence such that , upon entry into a cell, there is a first signal site and a second signal site positioned to mediate excision of a sufficient portion of either the recombinase gene or the expression control sequence to extinguish recombinase activity when the first and second signal sites are contacted with a recombinase, cells, transgenics and uses of the foregoing.

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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 April 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 12, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 12, 2001
GrantedNo grant recorded
Term endedApril 12, 2021
Patent numberCA 2405768 A1
Classification (IPC)C12N15/79 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedApril 12, 2001Term endedApril 12, 2021

Sources & verification

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