Device for measuring an electric current
CA 2454967 C · Owner: Actaris S.A.S. · Inventors: Guillon, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a device (1) for measuring an electric current and is particularly well adapted to electricity counters. This device (1) comprises a primary conductor (2) having a general U-shape the primary conductor , comprising a core (16) substantially circular in shape centred on an axis C, a first (19) and second (20) branches and a secondary winding (6) sensitive to a magnetic field. The secondary winding is disposed between the first (19) and second (20) branch of the primary conductor (2). The primary conductor (2) is a flat profile folded in a U the first , branch (19) exhibiting torsion (13) of an angle of 90° according to a first direction of torsion …
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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 January 7, 2004 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2026.
- 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.