Battery charging system
CA 2227624 C · Owner: Motorola Mobility Llc · Inventors: Maierhafer, Daniel Leon; Fernandez, Jose Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A battery charging system (10) includes a charger (12) power supply (14), electrical device (16) external battery (18), and peripheral device (20). The charger (12) provides connections between the various components such that the electrical device (16), which is a portable electronic device may communicate , with the peripheral device (20). The components are kept small by providing the power supply (14) with a feedback input (26). The power supply generates a voltage output (24) which is at a preselected differential above the feedback level, thus minimizing overhead voltage levels and allowing efficient linear regulation in the electrical device (16) for battery recharging.
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 July 19, 1996 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2018.
- 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.