Granted Patent
Utility
US 4,285,503 · App. 06/059,857
Apparatus for steam generator tube wrapper spacer and support block removal
Inventors:
Gregory L. Calhoun, Angelo Cassette
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Jul 20, 1979
Inventors
Gregory L. Calhoun
Angelo Cassette
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.