Granted Patent
Utility
US 5,378,562 · App. 08/190,781
Method of making air cathode material having catalytically active manganese compounds of valance state +2
Inventors:
Joseph L. Passaniti, Robert B. Dopp
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Feb 1, 1994
Inventors
Joseph L. Passaniti
Robert B. Dopp
Assignee (at issue)
Rayovac 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.