Apparatus for observing suction of sample having function of automatic regulation
CA 2076706 A1 · Owner: Toa Medical Electronics Co. Ltd. · Inventors: Kio, Katsuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an automatic analyzer such as blood analyzer it, is important to observe whether the sample such as blood is sucked correctly or not. In an apparatus for observing suction of sample comprising a sample suction tube (14) a, luminous element (10) for emitting light toward the sample suction tube (14) being driven by a driving circuit (16) a, photo sensor (12) for receiving the light from the sample suction tube (14), and a judging circuit (20) for judging the sample suction on the basis of the signal from the photo sensor (12), a controller (22) is provided in order to drive the luminous element (10) so that the output (Vp) of the photo sensor (12) may be nearly the reference value (Vr) …
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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 August 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2014.
- 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.