Process and system for determining the longitudinal position of the center of gravity of an aircraft provided with an adjustable horizontal stabilizer and application to the monitoring of said center of gravity near the focus of the aircraft

Granted: Jun 26, 1990 Filed: Aug 12, 1988

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.