Method and device for treating raw manure
CA 2509848 C · Owner: 9401-5104 Quebec Inc. · Inventors: Poudrette, Alexandre; Gauthier, Gaetan; Poudrette, Florian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method and a device for treating and upgrading raw manure. The method and the device comprise steps which consists in promoting agglomeration of solid constituents of the manure and precipitating the agglomerated particles using a sedimentation agent. More particularly the sedimentation agent used is based on natural stone powder and/or industrial derivatives. The sedimentation of the agglomerated particles enables the solid phase and the liquid phase to be separately treated leading optionally to the production of solid fertilizer liquid fertilizer and water corresponding to environmental standards and capable of being released into the environment or readily …
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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 December 18, 2003 and granted November 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.