Granted Patent
Utility
US 6,061,639 · App. 08/981,504
Battery capacity measuring device
Inventor:
Per Wistrand
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Dec 29, 1997
Inventor
Per Wistrand
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.