Battery charger with improved reliability
CA 2634535 C · Owner: Veritas Dgc, Inc. · Inventors: Lafont, Don; Roy, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A battery charger system providing increased reliability over conventional chargers includes one or more charging modules coupled to a central controller module. Each charging module is capable of charging one or two batteries and includes control logic that controls the charging current provided to each battery. Each charging module is capable of charging the associated batteries using a pre-programmed selectable charging protocol. The control logic included in each of the charging module provides a "first level of intelligence" for charging batteries. The controller module provides a "second level of intelligence" that generally operates in conjunction with the first level of intelligence …
Read the whole patent
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 December 8, 1999 and granted January 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2021.
- 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.