Granted Patent
Utility
US 5,898,290 · App. 08/711,447
Battery pack with capacity and pre-removal indicators
Inventors:
Paul Beard, Robert J. Grabon
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Sep 6, 1996
Inventors
Paul Beard
Robert J. Grabon
Assignee (at issue)
Norand 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.