Radially shrinkable sleeve for enclosing a connection or a terminal of an electrical cable
CA 2031262 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Krabs, Raymond; Friedrich, Juergen; Viebranz, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radially shrinkable cylindrical sleeve for enclosing a connection or a terminal, respectively of a medium, voltage electrical cable, the cable including a conductor, an insulation surrounding the conductor and a, shielding layer surrounding the insulation. The sleeve comprises an inner layer including a cylindrical end portion at least at one extremity of the sleeve the end, portion being of dielectric material adapted to engage said shielding layer and a second portion of conductive or semi-conductive material located between the ends of the sleeve spaced from the end portion adapted to engage the conductor or a sleeve-shaped connector element interconnecting two conductors. A middle …
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 November 30, 1990 and granted July 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2012.
- 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.