Process and apparatus for increasing biological activity in waste treatment in bodies of water
CA 2610327 C · Owner: Bettle, Griscom · Inventors: Key, James Rhrodrick; Bettle, Griscom; Roberts, Ricky Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus for increasing biological activity in waste treatment ponds and lagoons. In this process a floating fluid circulator having an annular space between nested frusto-conical surfaces is operated in a pond or lagoon. An aerator within the scope of the floating fluid circulator is provided. That aerator includes an upper float chassis having a frusto-conical configuration, a sectional diverter arranged in a lower portion of the upper float chassis, the sectional aerator having a lower diverter portion and motor driven means mounted on the upper float chassis connected to a rotatable impeller.
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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 June 1, 2006 and granted August 4, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 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.
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.