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Expired Canadian patentCanada

Targeted methods of drug screening using co-culture methods

CA 2393360 C · Owner: Shoemaker, Daniel D. · Inventors: Shoemaker, Daniel D.; Ashby, Matthew

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 methods of screening for a molecule that inhibits the expression or activity of a protein encoded by a target gene which affects the fitness of a cell. The methods are based on a co-culture assay, and entail culturing together two cell populations each of which is a , population of identical cells of the same species that differs substantially only in the expression or activity of the gene to be targeted or its encoded protein and the presence or absence of a reporter gene. The screen can be applied to cultured cells, unicellular and multicellular organisms. Manipulating the expression or activity of the target gene sensitizes the host to a molecule …

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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 30, 2000 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2022.
  • 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 30, 2000
GrantedJanuary 8, 2013
Term endedNovember 30, 2020
Patent numberCA 2393360 C
Classification (IPC)C12N1/14 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedNov 30, 2000Patent grantedJan 8, 2013Term endedNov 30, 2020

Sources & verification

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