Process for chemical decontamination of layers of earth
CA 1090490 A · Owner: H.A. Schlatter Ag · Inventors: Forte, Ernst; Schulthess, Heinrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided an apparatus for the chemical decontamination of layers of earth and/or water contaminated with organic materials comprising the following block units: device for withdrawal of water from a water pressure line which water is to be treated and returned into the layers of earth, a mixing device for the preparation of a mixture of water and at least one strong, chemical oxidizing agent and/or bactericide, a degassing device for removal of excess gas from the mixture, a distribution device for distributing the mixture to several feed lines, and, several mobile sprinkling and/or feeding lines with drain pipes to feed the aqueous mixture to and/or the layers of earth whereby 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
- Granted November 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 1997.
- 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.