Thermally switchable katharometer
CA 1320848 C · Owner: Golay, Marcel J. E. · Inventors: Golay, Marcel J. E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas chromatography system has a chromatography column and a detector with a detector chamber connected to the column outlet. A switching assembly, for selectively alternately filling the detector chamber with carrier gas for a baseline measurement and with effluent for analysis is, connected to the detector. This assembly includes a gas chamber connected to the detector chamber a source of, carrier gas connected to the gas chamber and apparatus for, selectively heating gas in the gas chamber to cause carrier gas to be expelled from the gas chamber to fill the detection chamber for a baseline measurement and for cooling gas in the gas chamber to withdraw the carrier gas from the detection …
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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
- Granted August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
- 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.