Apparatus and method for remote current sensing
CA 2350535 A1 · Owner: Tobin, Noel Patrick · Inventors: Tobin, Noel Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for remotely sensing the currents flowing in a set of substantially parallel conductors carrying N independent AC currents comprises N magnetic field sensors M1, M2 positioned to take mutually independent measurements of the magnetic field generated by the conductors and provide corresponding signals. Processing means 12' or 12'' derive further signals respectively corresponding to the conductor currents based upon the sensor , signals and the location and angular orientation of each sensor relative to each conductor.
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 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2021.
- 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.