Apparatus and method for liquid sample introduction
CA 2062629 C · Owner: Perkinelmer Health Sciences, Inc. · Inventors: Etkin, Bernard; French, John Barry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid sample to be analyzed is fed to an ink jet printer micro pump. The pump directs the solution as, a stream of uniformly sized and spaced droplets into a, laminarly flowing stream of hot carrier gas. The carrier gas evaporates the solvents (e.g. water) in the droplets to form a stream of dried particles. The particles are vaporized by a plasma, laser or other heat source. The vapour can be ionized and the ions analyzed by a mass spectrometer, or the vapour can be analyzed by optical spectroscopy. The method reduces oxide and other interference effects, increases sample utilization and reduces, waste, signal noise, and memory effects increasing, instrument productivity. Multiple …
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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 March 10, 1992 and granted June 15, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 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
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.