Method for detection of alien matter contents in gases
CA 1304836 C · Owner: Puumalainen, Pertti · Inventors: Puumalainen, Pertti
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method is described for detecting foreign matter in gases, in which method the gas and foreign matter contained in it are ionized in an ionization zone. In the method, the ionized gas containing foreign matter is passed through chambers with different electric fields and the field currents passing through two or more such chambers are measured and corresponding signals are obtained. The amounts and relationships of the signals obtained provide an analysis of the foreign matter in the gases.
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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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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
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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.