Granted Patent
Utility
US 5,721,402 · App. 08/709,893
Noise suppression system for a jet engine
Inventor:
Charles A. Parente
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Sep 9, 1996
Inventor
Charles A. Parente
Assignee (at issue)
NORTHROP GRUMMAN 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.