Granted Patent
Utility
US 4,641,268 · App. 06/461,357
Cruise airspeed control for aircraft
Inventors:
Terry L. Zweifel, Harry Miller
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Jan 27, 1983
Inventors
Terry L. Zweifel
Harry Miller
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.