Granted Patent
Utility
US 4,923,669 · App. 07/312,288
Nuclear fuel rod grid spring and dimple structures having chamfered edges for reduced pressure drop
Inventor:
Edmund E. DeMario
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Feb 21, 1989
Inventor
Edmund E. DeMario
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.