Autonomous device for detection of faults on an electric network and process relating thereto
CA 2002471 A1 · Owner: Tougne, Daniel · Inventors: Savary, Pierre; Tougne, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The companies known as: MANUFACTURE D'APPAREILLAGE ELECTRIQUE, DE CAHORS AND ELECTRICITE DE FRANCE, "Autonomous device for detection of faults on an electric network and process relating thereto" (invented by: Pierre SAVARY, and Daniel TOUGNE) The autonomous device for detection of faults on an electric network comprises means (26) for detecting the presence of faults and delivering detection information, which axe connected to the said network by connection terminals (25), means of control and of processing (15), connected to the said means of detection (26), to process the detection information and generate fault analysis data, means of permanent storage (16), connected to the said means …
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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 November 8, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2011.
- 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.