Granted Patent
Utility
US 5,722,233 · App. 08/082,050
Turbofan engine exhaust mixing area modification for improved engine efficiency and noise reduction
Inventors:
John P. Nikkanen, Thomas J. Jannetta
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Jun 23, 1993
Inventors
John P. Nikkanen
Thomas J. Jannetta
Assignee (at issue)
The NORDAM Group LLC
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.