Granted Patent
Utility
US 5,423,178 · App. 07/951,599
Multiple passage cooling circuit method and device for gas turbine engine fuel nozzle
Inventor:
Robert T. Mains
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Sep 28, 1992
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.