Granted Patent
Utility
US 4,608,528 · App. 05/877,281
Battery charger adapter
Inventor:
Billy E. Stillwell
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Feb 13, 1978
Inventor
Billy E. Stillwell
Assignee (at issue)
General Electric Company
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.