Granted Patent
Utility
US 6,274,263 · App. 09/188,025
Semi-flooded lead acid battery cell
Inventor:
William E. M. Jones
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Nov 6, 1998
Inventor
William E. M. Jones
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.