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Expired Canadian patentCanada

Compositions and methods for control of reactivity between diagnostic reagents and microorganisms

CA 2190109 C · Owner: Scully, Dennis M. · Inventors: Brunelle, Sharon L.; Falbo-Nelson, Maria T.; Scully, Dennis M.

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Abstract From the Canadian patent

Compositions, devices, and methods for the detection of target microorganisms, such as by a visual immunoprecipitation assay, where the detection requires the migration of the target, microorganisms (typically a target microorganism-, antibody-detection reagent complex) along a lateral flow membrane of a diagnostic device. The present invention permits such detection by inhibiting the agglutination, or other aggregation, of target microorganisms (and particularly target microorganisms bound to an antibody-detection reagent) while the microorganisms are migrating along the lateral flow membrane.

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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 April 28, 1995 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 28, 1995
GrantedMarch 18, 2003
Term endedApril 28, 2015
Patent numberCA 2190109 C
Classification (IPC)G01N33/56 +1 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedApril 28, 1995Patent grantedMarch 18, 2003Term endedApril 28, 2015

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