Electrical conductors for cable
CA 1239058 A · Owner: Northern Telecom Limited · Inventors: Cheema, B. Paul S.; Vexler, Gavriel L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of making copper clad conductor by impinging of copper particles upon a heated steel wire to cause adhesion of the particles to the wire, by coalescence, building up the particles to form a coating and then drawing the coated wire to the required diameter. The coated wire may be heat treated to cause flow of copper to improve the surface finish before the drawing process. The copper particles may be directed at the wire by a spraying technique. Alternatively the wire is passed over a fluidized bed of the particles and through a cloud of particles thrown up by the bed. - i -
Read the whole patent
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 July 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 2005.
- 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.