Non conductive edge strip for use on an electrolytic metal refining cathode
CA 1270227 C · Owner: Technical Plastics T-R Ltd. · Inventors: Dufresne, Jean L.; Dufresne, Robert P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non conductive edge-strip for use on an, electrolytic metal refining cathode to prevent metal deposit problems over the edge contours of this cathode. The edgestrip is in the shape of an elongated profile member with a U-shaped cross-section sized to extend over and fit snuggly, onto an edge of the cathode. The edge-strip is made by pultrusion of glass fibers impregnated with a polymeric resin resistant to acids and alkalis, and externally covered with a surfacing veil resistant to acids and electrochemical attacks.
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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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.