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Expired Canadian patentCanada

Expression of protein c analogues

CA 1340263 C · Owner: Zymogenetics, Inc. · Inventors: Berkner, Kathleen L.; Foster, Donald C.; Murray, Mark J.

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Abstract From the Canadian patent

Genomic and cDNA sequences coding for a protein having substantially the same biological activity as human protein C and recombinant expression vectors comprising these sequences are disclosed. Methods are disclosed for producing a protein which has substantially the same biological activity as human protein C. The protein, which may be in the form of activated protein C, is produced by mammalian host cells transfected with a plasmid capable of integration in mammalian host cell DNA. The plasmid includes a promoter followed downstream by a DNA sequence which encodes a protein having substantially the same structure and/or activity as human protein C, the nucleotide sequence being followed …

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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 December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 29, 1987
GrantedDecember 15, 1998
Term endedDecember 15, 2015
Patent numberCA 1340263 C
Classification (IPC)C12N15/57 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006200920122015Application filedOct 29, 1987Patent grantedDec 15, 1998Term endedDec 15, 2015

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