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Canadian application, no grantCanada

Method of conversion of natural gas or of light alkanes into unsaturated hydrocarbons

CA 2003620 A1 · Owner: Saint-Just, Jacques J. · Inventors: Amouroux, Jacques; Nikravech, Mehrdad; Saint-Just, Jacques J.

CIPO record

Overview

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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 method of converting natural gas or light alkane(s) into unsaturated hydrocarbons, consisting in providing inside of a reaction space a fluidized bed of particles of a refractory and advantageously catalytic material and feeding a plasma of a hydrogen-containing gas and the natural gas or the light alkane(s) into the bed so that the latter effects the quenching of the reaction medium and catalyses the conversion reaction.

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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 22, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2011.
  • 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 22, 1989
GrantedNo grant recorded
Term endedNovember 22, 2009
Patent numberCA 2003620 A1
Classification (IPC)B01J19/08 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedNov 22, 1989Term endedNov 22, 2009

Sources & verification

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