Granted Patent
Utility
US 4,869,975 · App. 07/240,295
Overvoltage control circuit for a reserve battery
Inventors:
William J. Eppley, Walter T. Pertuch, Bernard C. Tierney
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Sep 6, 1988
Inventors
William J. Eppley
Walter T. Pertuch
Bernard C. Tierney
Assignee (at issue)
Honeywell Limited
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.