Sample introducing apparatus and sample modules for mass spectrometer
CA 2112901 C · Owner: Thompson, Cyril V. · Inventors: Wise, Marcus B.; Thompson, Cyril V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10) for introducing gaseous samples from a wide range of environmental matrices into a mass spectrometer (14) for analysis of the samples is described. Several sample preparing modules (30) including a real-time air monitoring module (94), a soil/liquid purge module (136) and a thermal desorption module (162) are individually and rapidly attachable to the sample introducing apparatus (10) for supplying gaseous samples to the mass spectrometer (14). The sample-introducing apparatus (14) uses a capillary column (24) for conveying the gaseous samples into the mass spectrometer (14) and is provided with an open/split interface (32) in communication with the capillary (24) 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 August 27, 1992 and granted May 25, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.