Granted Patent
Utility
US 4,623,297 · App. 06/737,775
Turbine rotor for gas turbine engine
Inventor:
Paul E. Beam, Jr.
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: May 28, 1985
Inventor
Paul E. Beam, Jr.
Assignee (at issue)
General Motors LLC
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.