Granted Patent
Utility
US 5,140,744 · App. 07/533,875
Modular multicell battery and rack
Inventor:
Robert D. Miller
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Jun 6, 1990
Inventor
Robert D. Miller
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.