Granted Patent
Utility
US 4,713,938 · App. 06/856,987
Gas turbine engine gaseous fuel injector
Inventor:
Jeffrey David Willis
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Apr 29, 1986
Inventor
Jeffrey David Willis
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.