Method and apparatus for removing earthworms from soil using electric pulses
CA 1297937 C · Owner: Podsiadly, Paul · Inventors: Soutar, Ian; Podsiadly, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title of the Invention: METHOD AND APPARATUS FOR REMOVING EARTHWORMS FROM, SOIL USING ELECTRIC PULSES Inventors: PAUL PODSIADLY and IAN SOUTAR ABSTRACT OF THE DISCLOSURE, A method and apparatus for causing earthworms to come to the surface of soil in which electric pulses are applied to the soil. The pulses are characterized by high power during a brief burst followed by a relatively long rest period. The method requires a small power supply and may therefore be put into practice with portable equipment.
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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.