Electrodeposition of copper sheet on separated cathode surfaces and extrusion of resulting particles
CA 1108086 A · Owner: Bicc Limited · Inventors: Llewellyn, Rees J.; White, Christopher J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Granules of copper are produced by deposition on a patterned electrode having cathode surfaces 7 separated by insulating material 9, 10. Deposition may be continued until the copper coheres into a continuous sheet in which, case the sheet is broken up along its lines of weakness. The granules are fabricated by continuous friction-effected extrusion to obtain rod, wire or other elongate products. - 17 -
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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
- 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.