High performance power cable shield and method of making
CA 2389265 C · Owner: General Cable Technologies Corporation · Inventors: Easter, Mark R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved conductor shielding composition for power cables and a method of forming such a composition into a conductor shield with improved smoothness and , electrical properties are disclosed. The composition includes a base polymer conductive carbon black and a block copolymer of ethylene oxide and propylene oxide.
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 June 6, 2002 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2024.
- 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.