Granted Patent
Utility
US 5,777,454 · App. 08/654,835
Back-up battery management system for a DC power supply
Inventors:
Joseph M. McAndrews, Richard H. Jones
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: May 29, 1996
Inventors
Joseph M. McAndrews
Richard H. Jones
Assignee (at issue)
Peco II, 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.