High numerical aperture flow cytometer and method of using same
CA 2462734 C · Owner: Roche, John W. · Inventors: Roche, John W.; Hansen, W. Peter; Flynn, Harold C. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high numerical aperture flow cytometer having a laser input (20) which emits a beam of light oriented substantially orthogonally to the flow of blood cells through a flow cell (18). A portion of the beam impinging upon the cells is scattered at a substantially right angle to the beam of laser input and is received by a right angle scatter light detector (22). A second portion of the beam impinging upon the cells in the flow cell is scattered at a much lower angle than 90~ and is collected on two distinct photo detectors that , represent 'forward scatter low' which has an angle of from about 1~ to about 3~ and 'forward scatter high' which has an angle of from about 9~ to about 12~ …
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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 October 2, 2002 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 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
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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.