Granted Patent
Utility
US 4,777,911 · App. 07/099,700
Stayrod configuration for facilitating steam generator sludge lancing
Inventor:
Robert M. Wepfer
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Sep 21, 1987
Inventor
Robert M. Wepfer
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.