Flexible power architecture which supports multiple battery technologies for use with a portable device
CA 2185375 C · Owner: At&T Corp. · Inventors: Fraterrigo, John; Kiley, David A.; Fishman, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable device operable from batteries employing different cell technologies is disclosed. Through the addition of minimal circuitry a portabledevice configured for operation with battery cells having a first type of technology may be configured to accommodate batteries employing alternative cell technologies. Circuitry is also associated with battery cells of the alternative battery technology for configuring output parameters of these battery cells for operation with the portable device. A single battery charger which connects to the portable device, is usable for recharging each of the battery cell technologies through the portable device.
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 September 12, 1996 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 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.