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Expired Canadian patentCanada

A catalyst structure having integral heat exchange (ii)

CA 2096950 C · Owner: Shoji, Toru · Inventors: Dalla Betta, Ralph A.; Ribiero, Fabio H.; Shoji, Toru

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

This invention is a catalyst structure having integral heat exchange surfaces. This feature allows use of the structure in highly exothermic process, such as a combustion process while maintaining the , catalyst and the structure wall at a temperature below the adiabatic combustion temperature of the combustible gas.

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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 November 26, 1991 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 26, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 26, 1991
GrantedFebruary 12, 2002
Term endedNovember 26, 2011
Patent numberCA 2096950 C
Classification (IPC)B01J23/40 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 26, 1991Patent grantedFeb 12, 2002Term endedNov 26, 2011

Sources & verification

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