Cable comprising interlocking metallic support members
CA 1187147 A · Owner: Bridon Limited · Inventors: Walton, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Metallic load-carrying elements are helically spun around a central member comprising a supporting member or members constituting a structure which defines at least one passage wholly accommodating at least one electrical or optical transmission element . The transmission element is thereby protected against stresses applied to the load-carrying elements. The central structure is radially and longitudinally self-supporting. The central member is formed by causing the supporting member or members and the transmission element or elements to converge to a point from which the central member is withdrawn continuously. The load-carrying elements are subsequently applied to the central member . …
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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 May 14, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2002.
- 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.