Apparatus for machining electrically conducting substances by electrochemical attack
CA 1089408 A · Owner: Ultra Centrifuge Nederland N.V. · Inventors: Visser, Kommer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for removing material from electrically conducting substances by electrochemical attack comprising a flow guiding nonconducting template which is equipped with one or more liquid inlets liquid outlets, and efflux channels inside the template characterised, in that the apparatus furthermore comprises a source of direct current the negative pole of which is connected by way of a pulse generator which supplies current pulses of 5 to 20 milliseconds and a resistor which resistor is connected in parallel to a current integrator to, electrodes, which are provided in the efflux channels in the flow guiding template at a distance from a work piece to be machined while the positive, …
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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 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 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.