Battery reconditioning device
CA 2201977 C · Owner: King, Thomas J. · Inventors: King, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device and method for reducing crystal formations which have a range of , resonant, frequencies on electrode plates of an electrical battery is described. A , signal generator is, connected to the primary winding of a transformer having primary and , secondary windings so, as to deliver a transformed alternating current signal to the secondary winding. A rectifier is, connected to the secondary winding to convert the transformed signal to a train of direct, current pulses at a frequency within the range of resonant frequencies and an , output circuit is, connected to the rectifier to deliver the train of pulses to the battery causing the crystals to, crack and redissolve into 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 April 7, 1997 and granted February 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2019.
- 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.