Granted Patent
Utility
US 6,809,500 · App. 10/353,189
Power supply apparatuses and power supply operational methods
Inventor:
John Cummings
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jan 28, 2003
Inventor
John Cummings
Assignee (at issue)
Valence Technology, 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.