Granted Patent
Utility
US 6,021,371 · App. 08/840,816
Communication and navigation system incorporating position determination
Inventor:
Robert B. Fultz
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Apr 16, 1997
Inventor
Robert B. Fultz
Assignee (at issue)
Trimble Navigation Limited
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.