Granted Patent
Utility
US 5,652,496 · App. 08/606,015
Electrical device having a discriminating, rechargeable battery system
Inventors:
James G. Pilarzyk, Upal Sengupta, Steven R. Ruth
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Feb 12, 1996
Inventors
James G. Pilarzyk
Upal Sengupta
Steven R. Ruth
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.