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Expired Canadian patentCanada

Expression of factor vii and ix activities in mammalian cells

CA 1340512 C · Owner: Insley, Margaret Y. · Inventors: Gray, Charles L.; Busby, Sharon J.; Woodbury, Richard G.

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Abstract From the Canadian patent

Methods are disclosed for producing proteins having biological activity for blood coagulation mediated by Factor VIIa or Factor IX. The proteins are produced by mammalian host cells which have been stably transfected with a DNA construct containing a nucleotide sequence which codes at least partially for either Factor VII or Factor IX. The nucleotide sequence comprises a first nucleotide sequence encoding a calcium binding domain, joined to a second nucleotide sequence positionned downstream of the first sequence. In particular the first, nucleotide sequence may be derived from a genomic clone or cDNA clone of Factor VII. The second sequence encodes a catalytic domain for the serine …

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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

  • Granted April 27, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2016.
  • 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 17, 1986
GrantedApril 27, 1999
Term endedApril 27, 2016
Patent numberCA 1340512 C
Classification (IPC)C12N15/57 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005200820112014Application filedApril 17, 1986Patent grantedApril 27, 1999Term endedApril 27, 2016

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