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Canadian application, no grantCanada

Reduction of nox emissions

CA 2128748 A1 · Owner: Texaco Chemical Company · Inventors: Sliger, Arlen Glenn

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

REDUCTION OF NOX EMISSIONS, (Docket No. 81,172 -F ) ABSTRACT OF THE DISCLOSURE, A method for reducing NOX emissions in a chemical reaction process wherein ammonia is formed as a by-product of the chemical reaction, wherein the chemical reaction product is separated into desired fractions by distillation in distillation columns utilizing steam-heated reboilers wherein, the steam for use in the reboilers is generated in a steam generator comprising a wet steam generation segment and a superheated steam generation segment, wherein hot combustion gases are generated by the burning of a hydrocarbon fuel with air, whereby NOX combustion by-products are formed wherein, the hot combustion gases are …

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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 July 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1994
GrantedNo grant recorded
Term endedJuly 25, 2014
Patent numberCA 2128748 A1
Classification (IPC)B01D53/34 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 25, 1994Term endedJuly 25, 2014

Sources & verification

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