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Expired Canadian patentCanada

Broad spectrum anti-viral therapeutics and prophylaxis

CA 2506526 C · Owner: Malakhov, Michael · Inventors: Fang, Fang; Yu, Mang; Malakhov, Michael

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 provides new compositions and methods for preventing and treating pathogen infection. In particular the present invention provides , compounds having an anchoring domain that anchors the compound to the surface of a target cell, and a therapeutic domain that can act extracellularly to prevent infection of the target cell by a pathogen such as a virus. Preferred , target cells are epithelial cells. The invention provides compositions and methods for preventing viral diseases, such as influenza using compounds , having anchoring domains that can bind target cells linked to enzymatic activities that can act extracellularly to interfere with viral infection of target …

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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 November 21, 2003 and granted April 18, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.
FiledNovember 21, 2003
GrantedApril 18, 2017
Term endedNovember 21, 2023
Patent numberCA 2506526 C
Classification (IPC)A61K38/16 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 21, 2003Patent grantedApril 18, 2017Term endedNov 21, 2023

Sources & verification

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