Granted Patent
Utility
US 5,188,231 · App. 07/708,324
Battery package with removable voltage indicator means
Inventors:
Larry Kivell, Robert L. Milanese, Charles E. Kiernan, Lorne H. Tittel
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: May 31, 1991
Inventors
Larry Kivell
Robert L. Milanese
Charles E. Kiernan
Lorne H. Tittel
Assignee (at issue)
Duracell 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.