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Expired Canadian patentCanada

Viral vectors and their use in therapeutic methods

CA 2441663 C · Owner: Medigene, Inc. · Inventors: Todo, Tomoki; Martuza, Robert; Rabkin, Samuel D.

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 invention provides viral vectors (e.g. herpes viral vectors) having mutations that , enhance the induction of an immune response without a concomitant increase in toxicity, and uses of these vectors to induce systemic immune responses in cancer patients.

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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 March 27, 2002 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 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.
FiledMarch 27, 2002
GrantedJanuary 22, 2013
Term endedMarch 27, 2022
Patent numberCA 2441663 C
Classification (IPC)C12N7/01 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 27, 2002Patent grantedJan 22, 2013Term endedMarch 27, 2022

Sources & verification

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