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Expired Canadian patentCanada

Reaction method and reactor therefor

CA 1204916 A · Owner: Toyo Engineering Corporation · Inventors: Watanabe, Hiroshi; Zanma, Jun; Ohsaki, Kozo

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Abstract From the Canadian patent

Abstract of the Disclosure: Disclosed herein are a method for carrying out a catalytic chemical reaction in the presence of a granular catalyst under conditions such that both the reactants and the reaction product are gaseous at the temperature and pressure of the reaction and a reactor, useful for practicing the above method. According to the present invention, a vertically extending annular, intercylinder space, defined between a cylindrical outer catalyst retainer and a cylinder inner catalyst retainer is divided by radially extending vertical partition walls into a plurality of chambers. Heat-exchanging tubes are disposed vertically in at least one of the chambers. A granular catalyst …

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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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 15, 1983
GrantedMay 27, 1986
Term endedMay 27, 2003
Patent numberCA 1204916 A
Classification (IPC)B01J8/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 15, 1983Patent grantedMay 27, 1986Term endedMay 27, 2003

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