.wire security device for detecting theft of a protected object and operating method
CA 2466675 C · Owner: Billiard, Jean-Pierre · Inventors: Billiard, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an electronic wire security device for detecting theft of a protected object said device comprising at least a detector (1) connected by a wire electrical connection (2) to a signalling unit (3) the detector being arranged associated with the object to be protected the detector having at least a first electrical state when associated with the object and a second electrical state when the object is separated from the detector the unit comprising at least a threshold voltage comparator with inputs/outputs including one input connected to the detector by the connection and at least one output indicating by signals at least the presence or the absence of the object based …
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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 13, 2002 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2024.
- 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.