Granted Patent
Utility
US 5,279,535 · App. 07/972,646
Internally cooled roller
Inventors:
George Aubrey Hawes, IV, Jeffery Ray Williams
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Nov 6, 1992
Inventors
George Aubrey Hawes, IV
Jeffery Ray Williams
Assignee (at issue)
British Steel plc.
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.