Granted Patent
Utility
US 5,221,048 · App. 07/741,647
Variable area exhaust nozzle
Inventor:
Jean-Pierre Lair
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Aug 7, 1991
Inventor
Jean-Pierre Lair
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.