Granted Patent
Utility
US 5,570,580 · App. 08/276,296
Multiple passage cooling circuit method and device for gas turbine engine fuel nozzle
Inventor:
Robert T. Mains
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jul 18, 1994
Inventor
Robert T. Mains
Assignee (at issue)
Parker-Hannifin Corporation
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.