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Expired Canadian patentCanada

Uses of recombinant colony stimulating factor-1

CA 1322158 C · Owner: Ralph, Peter · Inventors: Zimmerman, Robert; Ralph, Peter; Warren, Mary Kim

CIPO record

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Abstract From the Canadian patent

USES OF-RECOMBINANT COLONY STIMULATING FACTOR-l Abstract, A colony stimulating factor, CSF-1 is a, lymphokine useful in treating infections neoplasms, leukopenia, wounds, and in overcoming the immunosuppression induced by chemotherapy or resulting from other causes. CSF-1 is obtained in usable amounts by recombinant methods, including cloning and expression of the murine and human DNA sequences encoding this 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

  • Granted September 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 21, 1988
GrantedSeptember 14, 1993
Term endedSeptember 14, 2010
Patent numberCA 1322158 C
Classification (IPC)A61K38/19 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 21, 1988Patent grantedSep 14, 1993Term endedSep 14, 2010

Sources & verification

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