Granted Patent
Utility
US 6,719,150 · App. 09/989,502
Battery rack and system
Inventor:
Andrew Marraffa
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Nov 20, 2001
Inventor
Andrew Marraffa
Assignee (at issue)
Kim 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.