Granted Patent
Utility
US 5,543,701 · App. 08/149,251
Electrical storage cell polarization controller
Inventors:
Chiu F. Leung, Thomas O'Sullivan
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Nov 9, 1993
Inventors
Chiu F. Leung
Thomas O'Sullivan
Assignee (at issue)
Bell Communications Research, 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.