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Expired Canadian patentCanada

Monoclonal antibodies for inducing tolerance

CA 2055615 C · Owner: Cobbold, Stephen Paul · Inventors: Waldmann, Herman; Cobbold, Stephen Paul

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention relates to the use of a non-depleting anti-CD4 monoclonal antibody for the manufacture of a medicament for the induction of a state of immunological tolerance to an antigen by a method which comprises administering said non-depleting anti-CD4 monoclonal antibody to a subject together with a non-depleting anti-CD8 monoclonal antibody to induce an immunological tolerance permissive environment within said subject by means of said antibodies in the presence of said antigen. Also, the invention relates to a pharmaceutical composition in unit dose form comprising from 1 to 400 mg per unit dose of a non-depleting anti-CD4 antibody or a non-depleting anti-CD8 antibody …

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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 May 31, 1990 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1990
GrantedJuly 17, 2001
Term endedMay 31, 2010
Patent numberCA 2055615 C
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 31, 1990Patent grantedJuly 17, 2001Term endedMay 31, 2010

Sources & verification

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