Method and apparatus for screening obscured or partially obscured cells
CA 2081565 A1 · Owner: Coulter Electronics, Inc. · Inventors: Coulter, Wallace H.; Hudson, James Carey; Russell, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for screening obscured or partially obscured cells to enumerate one or more cell population subsets. A white blood cell population is counted along with a standard population. The standard population can be one of the total number of white blood cell populations a, white blood cell population which does not obscure the shifted or non-shifted sensed characteristic of the subset of interest an artificial population formed by microspheres which does not obscure the shifted or non-shifted sensed characteristic of the subset of interest or a white blood cell population into which the sensed characteristic of the subset will be wholly or partially shifted. The sensed …
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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 May 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2013.
- 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.