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Canadian application, no grantCanada

Methods and apparatus for molecular characterization

CA 2117475 A1 · Owner: Precision Detectors, Inc. · Inventors: Ford, Norman C. Jr.

CIPO record

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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 molecular characterization detector (8) includes a scattering cell (10) containing a sample for molecular characterization a light source (20) for directing a light beam through the cell (10) so that the light beam is scattered by the sample optical, elements (30, 32, 50, 52) for selecting from the scattered light a measurement beam (40) comprising light that is scattered by the sample from a predetermined portion of the cell (10) in a predetermined range of angles relative to the optical axis (22) and a detector, (44) for detecting the measurement beam and providing an output electrical signal representative of the measurement beam. The detector (44) typically selects light scattered …

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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 12, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.
FiledFebruary 12, 1993
GrantedNo grant recorded
Term endedFebruary 12, 2013
Patent numberCA 2117475 A1
Classification (IPC)G01N21/49 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 12, 1993Term endedFeb 12, 2013

Sources & verification

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