Granted Patent
Utility
US 4,633,404 · App. 06/496,767
Automatic deceleration of aircraft during descent
Inventors:
Jeffrey A. Greeson, Terry L. Zweifel
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: May 20, 1983
Inventors
Jeffrey A. Greeson
Terry L. Zweifel
Assignee (at issue)
Sperry Corp.
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.