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Expired Canadian patentCanada

Antibody therapy

CA 2501616 C · Owner: Goldenberg, David M. · Inventors: Goldenberg, David M.; Hansen, Hans J.

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 provides a composition comprising naked humanized chimeric, and human anti-CEA antibodies and a therapeutic agent which is , useful for treatment of CEA expressing cancers and other diseases and methods , of use in treatment using this composition.

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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 October 8, 2003 and granted May 12, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 2003
GrantedMay 12, 2015
Term endedOctober 8, 2023
Patent numberCA 2501616 C
Classification (IPC)C07K16/46 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 8, 2003Patent grantedMay 12, 2015Term endedOct 8, 2023

Sources & verification

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