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Canadian application, no grantCanada

Apparatus and method for light profile microscopy

CA 2345500 A1 · Owner: Fu, Shao-Wei · Inventors: Power, Joan F.; Fu, Shao-Wei

CIPO record

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Abstract From the Canadian patent

The present invention comprises an apparatus and a method of microscopy for, measuring depth dependent profiles of optical absorption photoluminescence , and, light scattering in thin films on length scales of a few micrometers to a several, millimeters. The principles of this invention are also directly extendable to imaging, absorption and scattering at other wavelengths and the scattering of , electrons, and neutrons in thin films on the same or shorter length scales. In the optical range, this, depth profile information is recovered by the direct recording of micrometer scale, images of a light beam propagating along the depth axis of the material under study. The recording is …

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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 April 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 2001
GrantedNo grant recorded
Term endedApril 30, 2021
Patent numberCA 2345500 A1
Classification (IPC)G01N21/00 +2 more

Timeline

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2002200420062008201020122014201620182020Application filedApril 30, 2001Term endedApril 30, 2021

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