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Expired Canadian patentCanada

Process for thermophilic, aerobic fermentation of organic waste

CA 2184044 C · Owner: Branconnier, Rene Joseph · Inventors: Cumming, Daniel Brian; Jackman, Robert Lester; Branconnier, Rene Joseph

CIPO record

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Abstract From the Canadian patent

A thermophilic, aerobic fermentation process is disclosed for conversion of a wide, variety of organic waste materials to useful end products. The fermentation process is, initiated over a period of from about 2 to 6 days by application of external heat to an, uninoculated, oxygenated aqueous mixture of the waste material and thus , utilizes, thermophilic microorganisms naturally present in the waste material to initiate the, fermentation. After initiation of an active fermentation additional amounts , of waste, material are added to the fermenting mixture on a continuous or intermittent basis to, maintain the fermentation in an active state. Therefore the process can be , conducted …

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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 23, 1996 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2018.
  • 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 23, 1996
GrantedMarch 27, 2001
Term endedAugust 23, 2016
Patent numberCA 2184044 C
Classification (IPC)C05F17/60 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedAug 23, 1996Patent grantedMarch 27, 2001Term endedAug 23, 2016

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