Charging device for a portable telephone
CA 2085385 C · Owner: Namiki, Hideo · Inventors: Komoda, Motoyoshi; Namiki, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A charging device capable of charging a portable telephone in the same period of time with no regard to the ON/OFF state of a power source incorporated in the telephone. When the connection of the telephone to the charging device is detected whether or not a power source incorporated in the telephone is in an ON state is determined. A charging current to the telephone is changed depending on the ON/OFF state of the power source of the telephone.
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 15, 1992 and granted February 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2014.
- 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.