Automatic pipetting apparatus with leak detection and method of detecting a leak
CA 2221732 C · Owner: Kato, Yuko · Inventors: Takeda, Masaaki; Kato, Yuko; Pelletier, Brent Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Embodiments described herein provide a pipetting apparatus with leak detection and a method for detecting a leak. In one embodiment an automatic pipetting , apparatus comprises a nozzle having a lower end portion through which a fluid sample is aspirated and dispensed by changes in air pressure supplied to the nozzle. A piping system operatively connects the nozzle to a pump for supplying the air pressure to the nozzle. A pressure sensor is operatively connected with the piping system for measuring internal pressure in the piping system. Means is operatively connected with the nozzle for three-dimensionally moving the nozzle between an aspirating position of the fluid sample and a …
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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 13, 1996 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2018.
- 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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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.