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Expired Canadian patentCanada

Polypeptide for unstabilizing a protein in a cell under aerobic conditions and dna encoding the same

CA 2449802 C · Owner: Hiraoka, Masahiro · Inventors: Kondoh, Shinae; Hiraoka, Masahiro; Harada, Hiroshi

CIPO record

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Abstract From the Canadian patent

To identify a domain in HIF-1.alpha. protein which , participates in stabilization of a fused protein DNA , encoding the following polypeptide (A) or (B) is provided:, (A) a polypeptide having the amino acid sequence of SEQ ID NO: 1, (B) a polypeptide having an amino acid sequence comprising at least 16 amino acid residues in the amino acid sequence of SEQ ID NO: 1, and imparting stability dependent on an oxygen concentration to other protein in a cell harboring a fused protein, when the polypeptide is fused with a nuclear localization signal and the other protein to form the fused protein.

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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 June 4, 2002 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 4, 2002
GrantedFebruary 7, 2012
Term endedJune 4, 2022
Patent numberCA 2449802 C
Classification (IPC)C12N15/09 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 4, 2002Patent grantedFeb 7, 2012Term endedJune 4, 2022

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