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Expired Canadian patentCanada

Enhanced electrochemiluminescence

CA 2002083 C · Owner: Tyagi, Surendera K. · Inventors: Von Borstel, Reid Warren; Shah, Haresh P.; Tyagi, Surendera K.

CIPO record

Overview

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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 composition suitable for use in an ECL assay, wherein electromagnetic radiation emitted by said composition is detected, which composition comprises, (a) a metal-containing ECL moiety which when, oxidized by exposure to an effective amount of electrochemical energy, is capable of being converted to an excited state from which electromagnetic radiation is emitted upon exposure of the excited ECL moiety to conditions sufficient to induce said emission;, (b) a species, which, when oxidized forms a, strong reducing agent;, (c) an electrolyte capable of functioning as a medium in which said ECL moiety and said species can be oxidized; and, (d) a substance in the presence of which the amount of …

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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 2, 1989 and granted January 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2011.
  • 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 2, 1989
GrantedJanuary 9, 2001
Term endedNovember 2, 2009
Patent numberCA 2002083 C
Classification (IPC)G01N21/66 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedNov 2, 1989Patent grantedJan 9, 2001Term endedNov 2, 2009

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