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Expired Canadian patentCanada

Method for improving fluorescence image contrast

CA 2594237 C · Owner: New Art Advanced Research Technologies Inc. · Inventors: Ma, Guobin

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Abstract From the Canadian patent

There is provided an improved method for enhancing fluorescence images of an object, such as a biological tissue, by selectively eliminating or reducing unwanted fluorescence from fluorophores other than the fluorophore of interest. The method is based on the measurement of the lifetime of fluorophores while preserving information related to the fluorescence intensity of the fluorophore of interest.

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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 December 23, 2005 and granted October 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 2005
GrantedOctober 21, 2014
Term endedDecember 23, 2025
Patent numberCA 2594237 C
Classification (IPC)G01N21/64 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 23, 2005Patent grantedOct 21, 2014Term endedDec 23, 2025

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