Granted Patent
Utility
US 4,453,253 · App. 06/272,786
Electric arc furnace component
Inventors:
Anthony T. Lauria, Louis J. Voisinet
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Jun 10, 1981
Inventors
Anthony T. Lauria
Louis J. Voisinet
Assignee (at issue)
Union Carbide 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.