Granted Patent
Utility
US 5,886,503 · App. 08/878,914
Back-up battery management apparatus for charging and testing individual battery cells in a string of battery cells
Inventors:
Joseph M. McAndrews, Richard H. Jones
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Jun 19, 1997
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.