Method and device for measuring reflected optical radiation
CA 2250400 A1 · Owner: Blatt, Joel M. · Inventors: Widunas, Joseph T.; Blatt, Joel M.; Hebert, Raymond T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an optics assembly a reflectometer, and a , diagnostic device for providing quantitative measurement of optical radiation reflected from a sampling area (26) on an assay matrix (22). The reflectometer includes an optical radiation source (44) and a detector (34). The optical radiation source (44) and the detector (34) are mounted in a single plane. An optics assembly is configured to direct the illumination from the optical radiation source (44) to the sampling area (26) on the assay matrix (22) and to direct the radiation diffusely reflected from the sampling area (26) to the detector (34). The optics assembly is positioned over the face of the circuit …
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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, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.