Granted Patent
Utility
US 5,192,186 · App. 06/699,446
Gas turbine engine
Inventor:
John Sadler
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Nov 20, 1984
Inventor
John Sadler
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.