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Expired Canadian patentCanada

Glycoconjugates and their use as potential vaccines against infection by shigella flexneri

CA 2470262 C · Owner: Institut Pasteur · Inventors: Phalipon, Armelle; Nato, Farida; Baleux, Francoise

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

A conjugate molecule comprising an oligo- or polysaccharide covalently bound to a carrier and its use as potential vaccine against infection by S. Flexneri.

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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 July 2, 2004 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 2, 2004
GrantedJanuary 8, 2013
Term endedJuly 2, 2024
Patent numberCA 2470262 C
Classification (IPC)C12N15/13 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 2, 2004Patent grantedJan 8, 2013Term endedJuly 2, 2024

Sources & verification

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