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Expired Canadian patentCanada

Methods and compositions for the identification of metastatic human tumors

CA 1307478 C · Owner: Nicolson, Garth L. · Inventors: Steck, Peter A.; Nicolson, Garth L.; North, Susan M.

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Abstract From the Canadian patent

Disclosed are monoclonal antibodies which react with human tumor cells, particularly metastatic human tumor cells, but not with normal human tissues tested. The monoclonal antibodies are prepared against a 580 kilodalton glycoprotein antigen, designated gp580 which, is isolated from either rat or human tumor cells. Methods for isolating the glycoprotein antigen are disclosed as well. Moveover, techniques are disclosed for utilizing these antibodies both in the detection and in the prevention of human tumor lesions.

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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 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 2009.
  • 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 30, 1987
GrantedSeptember 15, 1992
Term endedSeptember 15, 2009
Patent numberCA 1307478 C
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 30, 1987Patent grantedSep 15, 1992Term endedSep 15, 2009

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