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Canadian application, no grantCanada

In vitro fluorescence polarization assay

CA 2250067 A1 · Owner: Macneil, Ian A. · Inventors: Zoller, Mark J.; Macneil, Ian A.; Lynch, Berkley A.

CIPO record

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Abstract From the Canadian patent

An in vitro assay method permits the identification of a test substance which inhibits the mutual association of a pair of proteins. The method includes the steps of providing a pair of proteins capable of mutual association one of , said proteins bearing a covalently linked fluorophore; preparing a mixture containing the two proteins and at least one test substance; irradiating the mixture with polarized light of a suitable wavelength permitting excitation of the fluorophore as indicated by emission of polarized light; measuring the degree of polarization of the emission and determining the effect of the , presence or concentration of the test substance in decreasing the observed …

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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 April 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 18, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 18, 1997
GrantedNo grant recorded
Term endedApril 18, 2017
Patent numberCA 2250067 A1
Classification (IPC)G01N33/54 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 18, 1997Term endedApril 18, 2017

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