Granted Patent
Utility
US 5,152,669 · App. 07/653,570
Turbomachine blade fastening
Inventors:
Roger W. Heinig, Donald W. Barnes
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Feb 11, 1991
Inventors
Roger W. Heinig
Donald W. Barnes
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.