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Canadian application, no grantCanada

Method of calculating capacity of intelligent battery, intelligent battery and portable electronic device

CA 2359829 A1 · Owner: Lenovo (Singapore) Pte. Ltd. · Inventors: Odaohhara, Shigefumi

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

To provide a method of calculating capacity of an intelligent battery the , intelligent battery, and a portable electronic device capable of allowing for power consumption by a minute current, undetectable by a conventional circuit without any special cost required so as to consequently allow, an error of capacity data to be smaller. The capacity data in a low electric power consumption mode, such as while in a soft-off mode is calculated based on the capacity data acquired by multiplying a, consumption electric current value in a low electric power consumption mode acquired in advance, by the time that the mode continues and voltage or the capacity data acquired by multiplying the, …

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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 October 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 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.
FiledOctober 24, 2001
GrantedNo grant recorded
Term endedOctober 24, 2021
Patent numberCA 2359829 A1
Classification (IPC)G01R31/38 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 24, 2001Term endedOct 24, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.