Granted Patent
Utility
US 5,848,848 · App. 08/870,228
Battery powered printer system with self-contained high power solid state battery voltage switching
Inventor:
David St. Jean, Jr.
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Jun 6, 1997
Inventor
David St. Jean, Jr.
Assignee (at issue)
Comtec Information Systems, 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.