Granted Patent
Utility
US 4,296,556 · App. 06/139,074
Rod cooling box air wipe nozzle
Inventor:
Lynn W. Bray
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Apr 10, 1980
Inventor
Lynn W. Bray
Assignee (at issue)
United States Steel Corporation
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.