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Expired Canadian patentCanada

Method and apparatus for detecting the presence of microbes and determining their physiological status

CA 2402575 C · Owner: Microbiosystems, Limited Partnership · Inventors: Lloyd, Christiopher R.; Powers, Linda S.

CIPO record

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Abstract From the Canadian patent

Method and apparatus for the detection of microbes in liquids in air and on non-living surfaces in which samples are exposed to electromagnetic radiation of specific energies capable of exciting various metabolites cofactors and cellular and spore components with the microbial cells to be sampled (and more specifically the excited metabolites cofactors and/or other cellular components) contained therein emit fluorescence that can be measured. The signal from the background and scattered excitation signals is removed from the fluorescence signals of the microbial components the relative fluorescent signals of the intrinsic microbial components are required to lie within physiological ranges …

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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 September 10, 2002 and granted November 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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.
FiledSeptember 10, 2002
GrantedNovember 8, 2011
Term endedSeptember 10, 2022
Patent numberCA 2402575 C
Classification (IPC)C12Q1/04 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedSep 10, 2002Patent grantedNov 8, 2011Term endedSep 10, 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.