Granted Patent
Utility
US 5,897,973 · App. 08/811,637
Lithium cell recharging
Inventors:
Andrew David Hamilton Stephenson, Sean Francis Palmore
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Mar 5, 1997
Inventors
Andrew David Hamilton Stephenson
Sean Francis Palmore
Assignee (at issue)
AEA Technology 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.