Granted Patent
Utility
US 5,886,649 · App. 08/870,401
Aircraft flight indicator
Inventor:
Daniel Francois
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Jun 6, 1997
Inventor
Daniel Francois
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.