Granted Patent
Utility
US 5,691,083 · App. 08/487,370
Potassium ion additives for voltage control and performance improvement in nonaqueous cells
Inventor:
Mary Elizabeth Bolster
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jun 7, 1995
Inventor
Mary Elizabeth Bolster
Assignee (at issue)
Eveready Battery Company, 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.