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Expired Canadian patentCanada

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CA 1237149 A · Owner: The British Petroleum Company P.L.C. · Inventors: Weinberg, Felix J.; Brophy, John H.

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

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Abstract From the Canadian patent

Process for the production of synthesis gas and higher hydrocarbons in which a saturated hydrocarbon and an oxygen containing gas having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion are introduced into a bed of an inert particulate material. The upward flow rate of the hydrocarbon/oxygen containing gas stream is sufficient to fluidise or to produce a spouting action of the bed material? whereby the particulate material is thrown up above the bed surface and subsequently falls back into the bed. The hydrocarbon and oxygen containing gas are ignited and reacted together and the, products of the reaction withdrawn.

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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 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 3, 1985
GrantedMay 24, 1988
Term endedMay 24, 2005
Patent numberCA 1237149 A
Classification (IPC)C01B3/36 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedApril 3, 1985Patent grantedMay 24, 1988Term endedMay 24, 2005

Sources & verification

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