Granted Patent
Utility
US 5,291,116 · App. 07/950,066
Apparatus for charging alkaline zinc-manganese dioxide cells
Inventor:
Robert Feldstein
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Sep 23, 1992
Inventor
Robert Feldstein
Assignee (at issue)
Batonex, Inc.
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.