Multimedia bioreactor and periodic washing method therefor
CA 2068677 A1 · Owner: Meunier, Charles · Inventors: Meunier, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multimedia bioreactor and periodic washing method therefor ABSTRACT OF THE DISCLOSURE, The bioreactor consists of a basin which holds two superimposed layers of biomedia supported by a false floor. The waste liquid is poured over the top of the bioreactor and seeps, through the layers of media and into the nozzles mounted on the false floor. The upper layer of media consists of low density buoyant material, the lower layer of media consists of non-buoyant material. The upper media layer performs mainly reduction of the organic load in the waste water, while the lower layer completes the biological degradation with in addition retaining the solids in suspension in the waste water. Water and …
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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 14, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2014.
- 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.