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Expired Canadian patentCanada

A method and apparatus for monitoring a condition in chlorophyll containing matter

CA 2416113 C · Owner: Scrutton, Jeffrey Garrett Edmund · Inventors: Scrutton, Jeffrey Garrett Edmund; Delong, John; Leyte, Jerry

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Abstract From the Canadian patent

A method of monitoring health in chlorophyll containing matter comprises exposing the matter to a light source to cause chlorophyll to fluoresce and emit a fluorescence signal. Any changes in a parameter indicative of changes in the intensity of the fluorescence signal are detected and compared with a predetermined threshold. A change which exceeds the predetermined threshold is interpreted as a transition of the level of stress in the chlorophyll containing matter. An apparatus for monitoring health in chlorophyll containing matter is also provided and comprises a light source for causing chlorophyll in the matter to fluoresce a detector for detecting the intensity the fluorescent …

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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 16, 2001 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2023.
  • 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 16, 2001
GrantedFebruary 8, 2011
Term endedJuly 16, 2021
Patent numberCA 2416113 C
Classification (IPC)G01N21/64 +2 more

Timeline

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2002200420062008201020122014201620182020Application filedJuly 16, 2001Patent grantedFeb 8, 2011Term endedJuly 16, 2021

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