Granted Patent
Utility
US 4,824,328 · App. 07/053,237
Turbine blade attachment
Inventors:
Frank A. Pisz, Arthur S. Warnock, Roger W. Heinig
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: May 22, 1987
Inventors
Frank A. Pisz
Arthur S. Warnock
Roger W. Heinig
Assignee (at issue)
Westinghouse Electric Company 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.