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Expired Canadian patentCanada

Process of preparing soil additive or fertilizer from fish

CA 2546156 C · Owner: Ecolo Odor Control Technologies Inc. · Inventors: Beckley, Michael A.; Robinson, Parker; Ormsby, William

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Abstract From the Canadian patent

A process for preparing fertilizer from fish and a fertilizer prepared from , said process is , disclosed. The fertilizer is for use on soil and plants. The process involves hydrolysis of fish , with a phosphorus containing acid preferably an inorganic phosphorus based acid, under normal , ambient conditions. Typically phosphoric acid is used. The fertilizer prepared from the , disclosed process contains 1 to 10% by weight of the phosphorus based acid.

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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 May 9, 2006 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 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.
FiledMay 9, 2006
GrantedFebruary 11, 2014
Term endedMay 9, 2026
Patent numberCA 2546156 C
Classification (IPC)C05F11/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 9, 2006Patent grantedFeb 11, 2014Term endedMay 9, 2026

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