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Expired Canadian patentCanada

Hydrogen generation from flue gases

CA 1090574 A · Owner: Ralph M. Parsons Company (The) · Inventors: Brocoff, Jack

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Flue gases as generated in the combustion of a carbonaceous fuel are extracted while at a high temperature, e.g. 2000 to 3800°F, and mixed with a fuel and converted in the presence of an oxidant such as air and/or steam to a thermally generated gas stream enriched in hydrogen and/or its equivalent carbon monoxide. Conversion efficiencies based on the hydrocarbon feed in excess of 100% are achievable.

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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 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 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.
FiledFebruary 17, 1978
GrantedDecember 2, 1980
Term endedDecember 2, 1997
Patent numberCA 1090574 A
Classification (IPC)C10J1/00 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedFeb 17, 1978Patent grantedDec 2, 1980Term endedDec 2, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.