Chromatographic analysis of gaseous matter
CA 1136890 A · Owner: Geoservices · Inventors: Issenmann, Olivier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In conventional chromatographic analysis the signals from the detector are utilized to draw a graph directly related to the strength of the detector signal and thus the graph requires interpretation by skilled personnel. The present invention provides a method and apparatus for processing the signal produced by the detector of a chromatographic analysis apparatus and wherein the detector signal is monitored over a fixed period of time, so spaced from a "start" time datum as to include the approach to and fall from maximum concentration of one gaseous constituent flowing through the detector, the signal strength indicative of the maximum concentration of the constituent within said time …
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.