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Expired Canadian patentCanada

Process and apparatus for producing synthesis gas

CA 1320641 C · Owner: Sie, Swan Tiong · Inventors: Sie, Swan Tiong

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

A process for producing synthesis gas by catalytic reforming of hydrocarbons with steam in a reaction zone which is subjected to heat exchange with a combustion gas and recycling heat exchanged combustion gas to a combustion zone. The invention further relates to an apparatus suitable for said process.

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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 July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 1986
GrantedJuly 27, 1993
Term endedJuly 27, 2010
Patent numberCA 1320641 C
Classification (IPC)C01B3/34 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedAug 6, 1986Patent grantedJuly 27, 1993Term endedJuly 27, 2010

Sources & verification

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