Residual water treatment microplant for small flows
CA 2287998 A1 · Owner: Morgan-Sagastume, Juan Manuel · Inventors: Noyola-Robles, Adalberto; Morgan-Sagastume, Juan Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention presents a residual water treatment plant for small flows, characterized by the combination of a primary sedimentation zone followed by anoxic and aerobic packed zones, placed serially all of them, with packing alternating, descending and ascending flows and aerated according to the oxygen requirement, there being a recirculation of treated water with sedimented mud between the secondary sedimentator and the first anoxic compartment or primary sedimentation zone, which produces treated water with enough quality for reutilization activities, after prior disinfecting (for example, watering, automobile-washing, flushing of sanitary facilities, floor-washing, and so forth). The …
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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 October 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2021.
- 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.