Power source switching circuit
CA 1303719 C · Owner: Samsung Electronics Co. Ltd. · Inventors: Kwon, Hisung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new type of power source switching circuit is disclosed. In the device of the present invention a, relay is used instead of semiconductor elements which are used in the conventional types of power source switching circuit. Compared with the conventional ones the circuit according to the present invention is much simpler, and assures the protection of the circuit against damages due to an overvoltage or impact pulses which damages are liable to occur in the conventional types of power source switching circuit.
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
- Granted June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.