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Expired Canadian patentCanada

Humanized antibodies derived from dd-3b6/22, specific for the d-dimer fragment of fibrin

CA 2450828 C · Owner: Agen Biomedical Limited · Inventors: Carr, Francis J.; Hamilton, Anita A.

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

The present invention is directed to humanised forms of the mouse monoclonal antibody DD-3B6/22. This antibody is specific for D-dimer a degradation , fragment of crosslinked fibrin polymers. The invention also includes the use of these antibodies to detect blood clots in vivo.

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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 June 26, 2002 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 26, 2002
GrantedNovember 26, 2013
Term endedJune 26, 2022
Patent numberCA 2450828 C
Classification (IPC)C12N15/13 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 26, 2002Patent grantedNov 26, 2013Term endedJune 26, 2022

Sources & verification

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