Granted Patent
Utility
US 5,330,161 · App. 08/088,800
Spray cooled hood system for handling hot gases from a metallurgical vessel utilizing pneumatic processing of molten metal
Inventors:
David Arthur Lehr, Gordon R. Roberts, Mark Thomas Arthur
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Jul 8, 1993
Inventors
David Arthur Lehr
Gordon R. Roberts
Mark Thomas Arthur
Assignee (at issue)
UCAR Carbon Technology 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.