Protective circuit for battery
CA 2305887 A1 · Owner: Descombes, Arthur · Inventors: Descombes, Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a protective circuit (10) for protecting a rechargeable battery (1) against currents of too high intensity. The protective circuit (10) includes, detection and comparison means (30 31, 32) for generating a control signal (OVRC), in response to the comparison of a reference voltage (V REF) and a measuring voltage, (V M) representative of the charge or discharge current (I CH I DCH) passing , through the, battery (1). According to the invention the detection and comparison means , (30 31, 32) include adjustment means (32) for compensating a temperature dependence of the measuring voltage (V M) and/or the reference voltage (V REF) these , adjustment, means (32) …
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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 April 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2022.
- 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.