Granted Patent
Utility
US 4,465,747 · App. 06/509,131
Alkali metal or alkaline earth metal compound additive for manganese dioxide-containing nonaqueous cells
Inventor:
William P. Evans
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Jun 29, 1983
Inventor
William P. Evans
Assignee (at issue)
Union Carbide Corporation
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.