Granted Patent
Utility
US 4,790,065 · App. 06/311,712
Method for servicing a steam generator
Inventors:
Frank W. Cooper, Jr., Raymond P. Castner
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Oct 15, 1981
Inventors
Frank W. Cooper, Jr.
Raymond P. Castner
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.