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Expired Canadian patentCanada

Tagged microparticle compositions and methods

CA 2465594 C · Owner: Kirakossian, Hrair · Inventors: Kirakossian, Hrair; Dehlinger, Peter; Singh, Sharat

CIPO record

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Abstract From the Canadian patent

Compositions and methods are disclosed for detecting multiple target analytes in a sample using microparticles having molecular tags attached by cleavable linkages. Generally, an assay mixture is formed comprising a sample and a reagent comprising multiple such microparticles under conditions that permit stable complexes to form between binding moieties on the surfaces of the microparticles and the analytes. In one aspect of the invention the a second , binding composition is added so that complexes form among the microparticlebound binding moieties, the analytes, and second binding moieties of the second binding composition. Such second binding moieties have cleavageinducing moieties …

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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 November 8, 2002 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 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.
FiledNovember 8, 2002
GrantedFebruary 7, 2012
Term endedNovember 8, 2022
Patent numberCA 2465594 C
Classification (IPC)G01N33/54 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 8, 2002Patent grantedFeb 7, 2012Term endedNov 8, 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.