Granted Patent
Utility
US 5,994,872 · App. 09/210,129
Apparatus for charging energy storage means from a multiphase power source
Inventor:
William B. Hall
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Jul 1, 1998
Inventor
William B. Hall
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.