Granted Patent
Utility
US 5,856,040 · App. 07/673,045
Alkaline cell
Inventors:
Gerald H. Newman, Alwyn H. Taylor, Michel Vernhes
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Mar 21, 1991
Inventors
Gerald H. Newman
Alwyn H. Taylor
Michel Vernhes
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.