Gas insulated electrical cable
CA 2203176 C · Owner: Tixier, Rene · Inventors: Pham, Van Doan; Tixier, Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Gas insulated cable, including a number of cable segments (1A 1B) linked together in pairs. Each segment contains three conductors (2A 2B,...). The end of each conductor (2A 2B,...) of a segment (1A) is fitted with a metal end socket (13A 14A...) fitted into a cylindrical metal part (2B' 3B',...) on the conductor (2B, 3B,...) complementary to the adjacent segment (1B) the said terminal part (2B', 3B',...) being provided with an interior contact (17B 18B,...) co-operant with the said end (13A 14A,...) with an insulating sleeve (21 22,...) equal in length to about twice its diameter placed around the said end (13A, 14A,...) and between the end (13A 14A,...) and the inner wall of the said end …
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 April 18, 1997 and granted June 26, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2019.
- 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.