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Expired Canadian patentCanada

Method of glucose or galactose detection with glucose/galactose binding protein

CA 2336985 C · Owner: Rao, Govind · Inventors: Tolosa, Leah; Lakowicz, Joseph R.; Eichhorn, Lisa

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Abstract From the Canadian patent

A method for determining the presence or concentration of a glucose or galactose, analyte in a sample, comprises providing a sensing molecule that is a protein capable of, binding the analyte in said sample. The sensing molecule is a glucose/galactose binding, protein that is modified to contain a cysteine residue at positions 26 and 182 of said, molecule. The sensing molecule comprises an energy donor moiety and an energy acceptor, moiety, each bound to the sensing molecule and spaced such that there is a detectable, signal change when the sensing molecule is bound to the analyte. The sensing molecule is, then exposed to said sample and the detectable signal change is measured to …

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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 15, 1999 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2021.
  • 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 15, 1999
GrantedJanuary 4, 2011
Term endedJuly 15, 2019
Patent numberCA 2336985 C
Classification (IPC)C12Q1/54 +2 more

Timeline

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2000200220042006200820102012201420162018Application filedJuly 15, 1999Patent grantedJan 4, 2011Term endedJuly 15, 2019

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