Granted Patent
Utility
US 4,769,996 · App. 07/006,748
Fuel transfer system for multiple concentric shaft gas turbine engines
Inventor:
Dennis E. Barbeau
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Jan 27, 1987
Inventor
Dennis E. Barbeau
Assignee (at issue)
Teledyne Industries, 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.