Apparatus for counting and determining at least one leucocytic sub-population
CA 2028474 C · Owner: Champseix, Henri · Inventors: Champseix, Henri; Lefevre, Didier; Champseix, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus is disclosed for counting and determining at least one leucocytic sub-population comprising a case (1) for injecting a flow of sample to be analyzed inside a measurement tank (5) through which a light beam (24) passes, comprising internal (16) and external (10) nozzles for sleeving the sample by means of a pressurized liquid. Electrodes for the resistivity measurements of the leucocytic sub-population are component elements (8, 16) of the injection case. Units for collecting and processing the signals delivered by the optical sensor and the electrodes are also provided.
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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 24, 1990 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2012.
- 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.