Granted Patent
Utility
US 4,795,885 · App. 07/171,198
Flexible radiant tube heater
Inventors:
John M. Driggers, Thomas J. Saska, Bruce W. Bevilacqua
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Mar 21, 1988
Inventors
John M. Driggers
Thomas J. Saska
Bruce W. Bevilacqua
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.