Granted Patent
Utility
US 4,986,959 · App. 07/353,303
Nuclear fuel assembly with expandable top nozzle subassembly
Inventors:
James A. Sparrow, Yu Chung Lee
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: May 17, 1989
Inventors
James A. Sparrow
Yu Chung Lee
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.