Granted Patent
Utility
US 4,238,663 · App. 05/953,658
Tube bundle cutting method and apparatus
Inventors:
Gregory L. Calhoun, Frank I. Bauer, Arthur W. Kramer
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Oct 23, 1978
Inventors
Gregory L. Calhoun
Frank I. Bauer
Arthur W. Kramer
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.