Granted Patent
Utility
US 6,515,458 · App. 09/844,580
Pulse oscillator and voltage level converter
Inventor:
Leslie W. Partridge
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Apr 26, 2001
Inventor
Leslie W. Partridge
Assignee (at issue)
Ion 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.