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Expired Canadian patentCanada

The transformer aerobic digestion method

CA 2609960 C · Owner: Aho, Richard L. · Inventors: Aho, Richard L.

CIPO record

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Abstract From the Canadian patent

This method facilitates the cost effective treatment of liquid and solid waste in a waste pile, a landfill, composting facility or in an area of isolated soil or groundwater contamination. The ability to distribute oxygen and reducing organisms to the waste and remove the spent waste using water is the key to the process. Waste moisture content is increased eliminating fires and , removing a major constraining factor to degradation. Large quantities of liquid are oxygen-supplemented (therefore treated) and are added directly into the MSW, contamination, or compost to maintain aerobic degradation. Temperature increases with the availability of oxygen. The reducing organisms break …

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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 16, 2006 and granted February 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 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 16, 2006
GrantedFebruary 25, 2014
Term endedMarch 16, 2026
Patent numberCA 2609960 C
Classification (IPC)C05F17/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 16, 2006Patent grantedFeb 25, 2014Term endedMarch 16, 2026

Sources & verification

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