High throughput optical scanner
CA 2310672 A1 · Owner: Van Der Engh, Gerrit J. · Inventors: Van Der Engh, Gerrit J.; Esposito, Richard J.; Basiji, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a scanning apparatus to obtain automated rapid , and sensitive scanning of substrate fluorescence optical density or , phosphorescence. The scanner uses a constant path length optical train which , enables the combination of a moving beam for high speed scanning with phasesensitive detection for noise reduction. The constant path length optical train comprises a light source, a scanning mirror (40) to receive light from the light source and sweep it across a steering mirror (50) the steering , mirror receives the light from the scanning mirror and reflect the light to a substrate wherein the substrate reflects the light to a photodetector (70).
Read the whole patent
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 November 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.