Electrical cables
CA 2591899 C · Owner: Wijnberg, Willem A. · Inventors: Varkey, Joseph P.; Nguyen, John Cuong; Arnaud, Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical cable is provided which includes a coated electrical conductor a polymeric protective layer which traps any coating flakes a first , insulating jacket disposed adjacent to the electrical conductor and having a first relative permittivity. A second insulating jacket disposed adjacent to the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity. In another aspect of the present invention, a method is provided for manufacturing a cable that includes providing a coated electrical conductor extruding a polymeric protective , layer over the coated electrical conductor extruding a first insulating , jacket over the …
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
- Filed December 20, 2005 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.