Granted Patent
Utility
US 6,201,499 · App. 09/017,864
Time difference of arrival measurement system
Inventors:
Kelly Davidson Hawkes, Jeffrey L. Koehler
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Feb 3, 1998
Inventors
Kelly Davidson Hawkes
Jeffrey L. Koehler
Assignee (at issue)
Consair Communications
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.