Granted Patent
Utility
US 4,747,467 · App. 06/846,771
Turbine engine noise suppression apparatus and methods
Inventors:
Craig Lyon, David F. Ross, Yogendra Yogi Sheoran
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Apr 1, 1986
Inventors
Craig Lyon
David F. Ross
Yogendra Yogi Sheoran
Assignee (at issue)
AlliedSignal, Inc.
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.