Granted Patent
Utility
US 5,986,580 · App. 09/209,238
Flight control indicator for aircraft
Inventor:
Alain Permanne
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Dec 10, 1998
Inventor
Alain Permanne
Assignee (at issue)
EUROCOPTER
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.