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Expired Canadian patentCanada

Mirror fluorometer

CA 2443603 C · Owner: Ondeo Nalco Company · Inventors: Banks, Rodney H.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A mirror fluorometer (10) with a rotatable mirror (24) positioned such that it is capable of projecting a converging cone of excitation light onto one or more of the samples wherein the fluorescent signals emitted from the fluorophores in the sample (34) is detected. A method of using the mirror fluorometer (10) for detecting fluorescent signals emitted by one or more fluorophores from samples (34) from a natural or industrial water system. The fluorometer (10), when coupled with a controller is capable of monitoring and optionally controlling an industrial process or system including a paper mill , process.

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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 May 3, 2002 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 3, 2002
GrantedDecember 10, 2013
Term endedMay 3, 2022
Patent numberCA 2443603 C
Classification (IPC)G01N21/64

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 3, 2002Patent grantedDec 10, 2013Term endedMay 3, 2022

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