Granted Patent
Utility
US 5,116,027 · App. 07/518,160
Apparatus for controlling teeming streams
Inventors:
Roy Widdowson, Alan Morris Scholes
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: May 3, 1990
Inventors
Roy Widdowson
Alan Morris Scholes
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.