Granted Patent
Utility
US 4,590,991 · App. 06/569,078
Flexible stabilizer for degraded heat exchanger tubing
Inventors:
Frank W. Cooper, Jr., Thomas M. Epperson, Gregory L. Calhoun, Harvey D. Kucherer
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Jan 9, 1984
Inventors
Frank W. Cooper, Jr.
Thomas M. Epperson
Gregory L. Calhoun
Harvey D. Kucherer
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.