Granted Patent
Utility
US 5,883,497 · App. 08/956,618
Battery fuel gauge
Inventor:
Robert R. Turnbull
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Sep 18, 1997
Inventor
Robert R. Turnbull
Assignee (at issue)
Packard Bell NEC
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.