Coupling device with galvanic insulation ensuring visually displayed switching off
CA 2399168 A1 · Owner: Duranton, Rene · Inventors: Duranton, Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a so-called galvanic insulation device for coupling two electrical circuits used both for transporting direct or low frequency current and for transmitting medium or high frequency signals. Said device comprises two primary and/or secondary coupling circuits (E¿1? E¿2?), separated from each other by an electrically insulating material (R) through which the coupling is produced such that it is possible to visually ascertain the physical separation of the two circuits (E¿1? E¿2?).
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 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2023.
- 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.