Granted Patent
Utility
US 4,286,430 · App. 06/076,391
Gas turbine engine
Inventor:
Raymond Smith
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Sep 17, 1979
Inventor
Raymond Smith
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.