Method and apparatus for charging, thawing, and formatting a battery
CA 2128507 C · Owner: Popp, Phillip W. · Inventors: Podrazhansky, Yury; Popp, Phillip W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for rapidly charging a battery. The preferred charging method comprises applying one or more charging pulses (C1, C2), separated by a waiting period (CW~) with the last charging pulse, if there are more than one being followed by a second waiting period (CW2). This is then followed by a series of discharging pulses (D1 D2, D3), which are, separated by waiting periods (DW1 DW2) and followed by a last waiting period (DW3) before the occurrence the next charging pulse (C1). The discharging pulses pulses preferably have a magnitude which is approximately the same as the magnitude of the charging pulses but which have a duration which is substantially smaller than 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 January 19, 1993 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2015.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.