Granted Patent
Utility
US 5,081,570 · App. 07/493,528
Control system for electric power supply
Inventors:
Ali Chibani, Katsuya Hirachi
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Mar 14, 1990
Inventors
Ali Chibani
Katsuya Hirachi
Assignee (at issue)
Yuasa Battery Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.