Granted Patent
Utility
US 4,444,006 · App. 06/231,633
Nozzle/valve device for a ducted rocket motor
Inventors:
William M. Burkes, Jr., William H. Miller
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Feb 4, 1981
Inventors
William M. Burkes, Jr.
William H. Miller
Assignee (at issue)
HERCULES 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.