Granted Patent
Utility
US 5,993,983 · App. 08/818,119
Portable power supply using hybrid battery technology
Inventor:
Paul Rozon
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Mar 14, 1997
Inventor
Paul Rozon
Assignee (at issue)
Scepter Manufacturing, LLC.
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.