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Expired Canadian patentCanada

Protein having cytokine type activity, recombinant dna coding for this protein, transformed cells and microorganisms

CA 2083826 C · Owner: Caput, Daniel · Inventors: Magazin, Marilyn; Kaghad, Mourad; Leplatois, Pascal

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

The subject of the present invention is a protein having cytokine type activity, or a precursor of this protein, which comprises the following amino acid sequence (a1):, Gly Pro Val Pro Pro Ser Thr Ala Leu Arg Glu Leu 1 5 10, Ile Glu Glu Leu Val Asn Ile Thr Gln Asn Gln Lys Ala Pro Leu Cys Asn Gly Ser Met Val Trp Ser Ile Asn Leu Thr Ala Xaa Met Tyr Cys Ala Ala Leu Glu Ser Leu Ile Asn Val Ser Gly Cys Ser Ala Ile Glu Lys Thr Gln Arg Met Leu Ser Gly Phe Cys Pro His Lys Val Ser Ala Gly Gln Phe Ser Ser Leu His Val Arg Asp Thr Lys Ile Glu Val Ala Gln Phe Val Lys Asp Leu Leu Leu His Leu Lys Lys Leu Phe Arg Glu 100 105, Gly Arg Phe Asn, 110, in which Xaa represents Asp or Gly.

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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 March 27, 1992 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 1992
GrantedApril 27, 1999
Term endedMarch 27, 2012
Patent numberCA 2083826 C
Classification (IPC)C12N15/19 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMarch 27, 1992Patent grantedApril 27, 1999Term endedMarch 27, 2012

Sources & verification

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