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Expired Canadian patentCanada

Human antibodies derived from immunized xenomice

CA 2219361 C · Owner: Abgenix, Inc. · Inventors: Jakobovits, Aya; Brenner, Daniel G.; Kucherlapati, Raju

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Fully human antibodies against a specific antigen can be prepared by administering the antigen to a transgenic animal which has been modified to produce such antibodies in response to antigenic challenge but whose , endogenous loci have been disabled. Various subsequent manipulations can be performed to obtain either antibodies per se or analogs thereof.

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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 April 29, 1996 and granted February 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1996
GrantedFebruary 28, 2012
Term endedApril 29, 2016
Patent numberCA 2219361 C
Classification (IPC)C12N15/13 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 29, 1996Patent grantedFeb 28, 2012Term endedApril 29, 2016

Sources & verification

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