Impact resistant cable
CA 2547720 C · Owner: Belli, Sergio · Inventors: Scelza, Cristiana; Bareggi, Alberto; Belli, Sergio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns a cable for use in a predetermined voltage class, said cable for use in a predetermined voltage class said cable , comprising: - at least one conductor; a at least one extruded insulating layer surrounding said conductor, said insulating layer being made from a noncrosslinked insulating material comprising at least one thermoplastic polymer and at least one dielectric liquid, said insulating layer having a thickness such as to provide a voltage gradient on the outer surface of the cable insulating layer not smaller than 1.0 kV/mm; and - a protective element around said extruded insulating layer having a thickness and mechanical properties selected to …
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 3, 2003 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2025.
- 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.