Granted Patent
Utility
US 5,850,197 · App. 08/917,798
Attitude determination using fewer than three antennas
Inventor:
John F. Schipper
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Aug 25, 1997
Inventor
John F. Schipper
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.