Granted Patent
Utility
US 6,285,167 · App. 09/308,041
Use of catalysts in standby valve-regulated lead acid cells
Inventor:
William E. M. Jones
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jul 13, 1999
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.