Granted Patent
Utility
US 4,740,754 · App. 06/818,198
Bidirectional battery state-of-charge monitor
Inventor:
Eugene P. Finger
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jan 13, 1986
Inventor
Eugene P. Finger
Assignee (at issue)
Curtis Instruments, Inc.
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.