Granted Patent
Utility
US 5,633,574 · App. 08/154,598
Pulse-charge battery charger
Inventor:
George E. Sage
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jan 18, 1994
Inventor
George E. Sage
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.