Apparatus for extraction of petroleum hydrocarbon contaminants from soil and ground water
CA 2297850 A1 · Owner: Strilchuk, Brian Dale · Inventors: Strilchuk, Brian Dale
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for extraction of petroleum hydrocarbon contaminants from soil and ground water includes a separator adapted to separate liquids based upon their differing densities. The separator has a contaminated ground water inlet, a separated water outlet, at least one separated contaminant outlet, and a separator overflow outlet. A treater is provided which is adapted to treat dissolved volatile hydrocarbons in separated water. The treater has an inlet connected to the separated water outlet of the separator and a treated water outlet . A treated water connection is provided for the treated water outlet of the treater whereby a treated water disposal conduit is connected for disposal of …
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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 January 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2022.
- 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.