Granted Patent
Utility
US 5,787,109 · App. 08/566,160
Furnace vessel for a DC arc furnace
Inventor:
Sven-Einar Stenkvist
Patented Case
View Patent ↗
Granted: Jul 28, 1998
Filed: Dec 1, 1995
Inventor
Sven-Einar Stenkvist
Assignee (at issue)
Asea Brown Boveri, S.A.
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.