Insulated electrical conductor for high-voltage windings
CA 2308566 A1 · Owner: Nordstrom, Anders · Inventors: Fromm, Udo; Oberg, Ake; Imrell, Torbjorn (Deceased)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical conductor for high-voltage (10 kV to 800 kV) windings comprises central conductive means and an outer semiconductive layer (18). At least one electrically conductive contacting device (20) penetrates into the outer layer (18), by means of a plurality of barbs for grounding purposes. A single , contacting device may contact a plurality of turns of the wound conductor. A method of establishing electrical contact with a semiconductive polymeric material comprises causing the contacting device to penetrate into the material.
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, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2020.
- 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.