Granted Patent
Utility
US 4,490,794 · App. 06/339,951
Altitude preselect system for aircraft without air data computer
Inventors:
Carl D. Griffith, Paul A. Rauschelbach, Robert Wilson Robinson, Edmund R. Skutecki
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Jan 18, 1982
Inventors
Carl D. Griffith
Paul A. Rauschelbach
Robert Wilson Robinson
Edmund R. Skutecki
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.