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Expired Canadian patentCanada

Monoclonal antibodies and vaccine development directed to human cancer-associated antigens by immunization with animal and human mucin and with synthetic carbohydrate-carrier conjugates

CA 1340587 C · Owner: The Biomembrane Institute · Inventors: Singhal, Anil; Clausen, Henrik; Hakomori, Senitiroh

CIPO record

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Abstract From the Canadian patent

A method of producing monoclonal antibodies that bind to human cancer-associated mucin-type glycoprotein antigens comprising: (1) immunizing a host with a core structure of a mucin-type glycoprotein; (2) fusing splenocytes from said immunized host with myeloma cells to form hybridoma cells; (3) culturing said hybridoma cells on selective medium; (4) selecting hybridoma cells surviving step (3) that secrete antibody that binds to said core structure of a mucin-type glycoprotein; (5) cloning said selected hybridoma cells from step (4); (6) culturing said cloned hybridoma cells; and (7) recovering said antibody. Hybridomas and monoclonal antibodies produced by the above-described method. …

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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 June 8, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 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.
FiledMarch 10, 1989
GrantedJune 8, 1999
Term endedJune 8, 2016
Patent numberCA 1340587 C
Classification (IPC)C12N5/18 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMarch 10, 1989Patent grantedJune 8, 1999Term endedJune 8, 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.