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Expired Canadian patentCanada

Closed retort charcoal reactor system

CA 2539012 C · Owner: Zeek Enterprises Inc. · Inventors: Flottvik, John

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 reactor is provided for converting organic material to charcoal with the , reactor having a furnace and a retort extending through the furnace. The retort , has an auger extending therethrough with the auger having a flight with gaps therein. Members project inwardly from the walls of the retort at the gaps in the flight to unplug blockages in the retort. A gas collection system is provided , which has a branched portion having two or more venting tubes each with , valves so that each may be shut off independently to allow to off-line cleaning , without requiring shutdown of the system. A method for converting organic material may be practised by introducing combustible materials …

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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 March 10, 2006 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 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.
FiledMarch 10, 2006
GrantedJuly 9, 2013
Term endedMarch 10, 2026
Patent numberCA 2539012 C
Classification (IPC)C10B7/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 10, 2006Patent grantedJuly 9, 2013Term endedMarch 10, 2026

Sources & verification

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