System and method for detecting and classifying biological particles
CA 2474036 C · Owner: Tilley, Greg A. · Inventors: Silcott, David B.; Pratt, Steven J.; Whitman, Brian R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous wave laser excites a biological particle. Detection channels are created to detect light scattered by the biological particle and to detect , any auto~fluorescence emitted by the biological particle. Additional channels can also detect light emitted by auto-fluorescence of the biological particle when simultaneously excited by light at harmonics of the laser's fundamental wavelength. The biological particle is identified using Mie scattering and auto~fluorescence. Ratio-metric calculations generated by calculating ratios of detected peak heights or integrated pulse values in the channels provides additional information for identifying and classifying the biological …
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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 November 7, 2002 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2024.
- 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.