Gas analysis apparatus
CA 1071709 A · Owner: Westinghouse Electric Corporation · Inventors: Isenberg, Arnold O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrochemical cell is used in combination with a gas diffusion limiting orifice or aperture in order to measure the limiting flow of electrochemically active gaseous species through the aperture, thus rendering the electrical signal developed by the electrochemical cell an indication of the partial pressure of the gas species to which the electrochemical cell is responsive.
Read the whole patent
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 February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- 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.