Apparatus for measuring the gas, vapour or aerosol components of a test gas
CA 1300682 C · Owner: Dragerwerk Aktiengesellschaft · Inventors: May, Wolfgang; Heckmann, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for measuring the gas vapour, or aerosol, component of a test gas in which the component that is to be indicated is absorbed in a reaction solution and in which on the basis of a reaction between the component and the reaction solution, a change in resistance is determined as a measured value, this being done with the help of electrodes in the reaction solution and with a resistance measuring system the, test gas entering a test chamber through a sealing element that is permeable for the medium to be indicated and impermeable to the reaction solution is to be improved from the point of view of universal applicability and in order to increase the conduct of the measuring …
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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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- 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.