Granted Patent
Utility
US 5,590,671 · App. 08/533,520
Mobile battery cleaning system
Inventor:
Robert S. Yachera
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Sep 25, 1995
Inventor
Robert S. Yachera
Assignee (at issue)
East Penn Manufacturing Co.
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.