Granted Patent
Utility
US 4,957,828 · App. 07/281,609
Emergency battery monitor
Inventor:
Stephen A. Garron
Patented Case
View Patent ↗
Granted: Sep 18, 1990
Filed: Dec 9, 1988
Inventor
Stephen A. Garron
Assignee (at issue)
SSMC 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.