Use of electromagnetic fields of intensities above background for purifying soil and similar contaminated substances
CA 2001076 A1 · Owner: Kopecek, Tomas · Inventors: Kopecek, Tomas; Pravda, Drahoslav; Kopecek, Tomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of Electromagnetic Field of Intesitics Above Background for Purifying Soil and Similar Contaminated Substances. Professor Kopecek and Dr. Pravda. The use of Electromagnetic Fields of Intensities Above Background for Purifying Soil and Similar Contaminated Substances. Professor Tomas Kopecek and Dr. Drahoslav Pravda CSc. Brno Czechoslovakia. Abstract. The object of this invention is a method of acellerating bio-degradation processes in soil and similar substances. The method involves the combination of an electromagnetic field obtained for example by feromagnetic targets and introducing a direct current of needed intensity. Based on their working experience in the domain 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 October 16, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2011.
- 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
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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.