Granted Patent
Utility
US 4,645,147 · App. 06/786,989
Ingress and egress system for an aircraft
Inventor:
Klaas Hendricks
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Oct 15, 1985
Inventor
Klaas Hendricks
Assignee (at issue)
Lockheed Corporation
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.