An electrical extension cord with immersion detection circuit interrupter safety protection
CA 2299975 A1 · Owner: Gershen, Bernard · Inventors: Gershen, Bernard; Campolo, Steve
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extension cord having a male plug at one end and a receptacle at the other has, a mechanism for opening the phase and neutral conductors in the event the receptacle is, subjected to a conductive media. A recess in the face of the receptacle receives a first, immersion detection electrode and a spaced parallel, second immersion , detection electrode. A conducting media bridging the two immersion detection electrodes sends a, signal to an operating device which causes the opening of the phase and neutral, conductors until the conducting media is removed.
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 February 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2022.
- 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.