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Expired Canadian patentCanada

Process and reactor for the preparation of a gas which is rich in hydrogen and/or carbon monoxide

CA 2103939 C · Owner: Primdahl, Ivar Ivarsen · Inventors: Primdahl, Ivar Ivarsen

CIPO record

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

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Abstract From the Canadian patent

A process is provided herein for the preparation of a gas which is rich in hydrogen and/or carbon monoxide. The process includes the partial oxidation of a, hydrocarbon feedstock in a reactor with an upper portion a lower portion, and , a, refractory lining which is attached to an inner surface of the reactor. The process, includes the first step of introducing the feedstock and an oxygen-containing gaseous, atmosphere into the upper portion of the reactor. That feedstock is then partially, oxidized with oxygen in the upper portion of the reactor. A part of that partially-oxidized, feedstock is then contacted with a reforming catalyst which is arranged on the refractory lining in at …

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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 August 12, 1993 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2015.
  • 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 12, 1993
GrantedApril 25, 2000
Term endedAugust 12, 2013
Patent numberCA 2103939 C
Classification (IPC)C01B3/38 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 12, 1993Patent grantedApril 25, 2000Term endedAug 12, 2013

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