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Expired Canadian patentCanada

Luminescent metal chelate labels and meand for detection

CA 1339835 C · Owner: Bard, Allen J. · Inventors: Bard, Allen J.; Whitesides, George M.

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Abstract From the Canadian patent

A chemical moiety is disclosed which comprises a chemical biochemical, or biological substance attached to one or more electrochemiluminescent organometallic compounds. In a preferred embodiment of the invention the substance is attached to one or more ruthenium-containing or osmium-containing luminescent organometallic compounds. Methods are disclosed for detecting very small amounts of the chemical moiety using chemiluminescent electrochemiluminescent, and photoluminescent means. Compounds are disclosed which are useful for labelling substances of interest with ruthenium-containing and osmium-containing labels or other electrochemiluminescent labels. These labelled substances are useful …

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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

  • Granted April 21, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 29, 1985
GrantedApril 21, 1998
Term endedApril 21, 2015
Patent numberCA 1339835 C
Classification (IPC)G01N33/53 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004200720102013Application filedOct 29, 1985Patent grantedApril 21, 1998Term endedApril 21, 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.