Granted Patent
Utility
US 6,140,822 · App. 09/188,163
System for signal path characterization with a reference signal using stepped-frequency increments
Inventor:
Thomas H. Williams
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Nov 7, 1998
Inventor
Thomas H. Williams
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.