Method and apparatus for gas analysis
CA 2064540 A1 · Owner: Institut Fresenius Chemische Und Biologische Laboratorien Gmbh · Inventors: Kanitz, Jurgen; Munchow-Pohl, Frank V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Method and an Apparatus for Gas Analysis The present invention relates to a method and an apparatus for determining concentrations of substances in gases. The method operates by electromagnetic irradiation and by measuring the intensity of the rays transmitted at a, wavelength which is characteristic of the substance to be detected wherein the, gas containing the substance is measured at at least two different gas pressure values. In order to overcome the drawbacks of the conventional methods which are carried out with reference gases which have to be produced and supplied expressly, but in order nonetheless to be able to quickly and easily determine the concentration of a substance in 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 March 31, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 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.