Granted Patent
Utility
US 5,949,372 · App. 08/943,656
Signal injection for calibration of pseudo-range errors in satellite positioning system receivers
Inventor:
Gary Lennen
Patented Case
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Granted: Sep 7, 1999
Filed: Oct 3, 1997
Inventor
Gary Lennen
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.