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Expired Canadian patentCanada

Method to produce hydrogen or synthesis gas

CA 2603545 C · Owner: Green, Martin C. · Inventors: Green, Martin C.

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 to produce hydrogen gas or synthesis gas is described and involves the use of a staged reactor. The present invention further relates to effectively running a process such that efficient quantities of hydrogen gas are produced, along with economically useful amounts of carbon black. A combined facility utilizing a carbon black manufacturing plant and a refinery plant are further described, as well as products made by the various methods of the present invention.

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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 April 6, 2006 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 6, 2006
GrantedMay 27, 2014
Term endedApril 6, 2026
Patent numberCA 2603545 C
Classification (IPC)C01B3/24 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 6, 2006Patent grantedMay 27, 2014Term endedApril 6, 2026

Sources & verification

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