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Canadian application, no grantCanada

Plasmon resonant particles, methods and apparatus

CA 2280794 A1 · Owner: Schultz, David A. · Inventors: Silva, Thomas J.; Schultz, David A.; Schultz, Sheldon

CIPO record

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Abstract From the Canadian patent

A method and apparatus for interrogating a target having a plurality of plasmon resonant particles (PREs) distributed in the target are disclosed. In the method, a field containing the target is illuminated and one or more , spectral emission characteristics of the light-scattering particles in the field are detected. From this data, an image of positions and spectral characteristic values in the field is constructed allowing PREs with a , selected spectral signature to be discriminated from other light-scattering entities, to provide information about the field. Also disclosed are a novel PRE composition for use in practicing the method and a variety of diagnostic , applications 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 February 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 20, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 20, 1998
GrantedNo grant recorded
Term endedFebruary 20, 2018
Patent numberCA 2280794 A1
Classification (IPC)G01N21/63 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 20, 1998Term endedFeb 20, 2018

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