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Expired Canadian patentCanada

Functional influenza virus-like particles (vlps)

CA 2532335 C · Owner: Robinson, Robin A. · Inventors: Pushko, Peter M.; Robinson, Robin 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

Recombinant influenza virus proteins, including influenza capsomers subviral , particles, virus-like particles (VLP) VLP complexes, and/or any portions of thereof, are provided as a vaccine for influenza viruses. The invention is based on the combination of two vaccine technologies: (1) intrinsically safe recombinant vaccine technology, and (2) highly immunogenic self-assembled , protein macromolecules embedded in plasma membranes and comprised of multiple copies of influenza virus structural proteins exhibiting neutralizing epitopes in native conformations. More specifically this invention relates to the , design and production of functional homotypic and heterotypic recombinant …

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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 9, 2004 and granted November 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 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 9, 2004
GrantedNovember 18, 2014
Term endedJuly 9, 2024
Patent numberCA 2532335 C
Classification (IPC)A61K39/12

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 9, 2004Patent grantedNov 18, 2014Term endedJuly 9, 2024

Sources & verification

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