Granted Patent
Utility
US 4,688,995 · App. 06/832,771
Propeller module for an aero gas turbine engine
Inventors:
William B. Wright, Addison C. Maguire
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Feb 25, 1986
Inventors
William B. Wright
Addison C. Maguire
Assignee (at issue)
ROLLS-ROYCE plc
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.