Granted Patent
Utility
US 4,820,476 · App. 07/019,759
System and method for plugging the core barrel of a nuclear reactor
Inventor:
Craig H. Popalis
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Feb 27, 1987
Inventor
Craig H. Popalis
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.