Granted Patent
Utility
US 5,946,341 · App. 08/675,929
Method pertaining to the operation of electric furnaces, and a furnace
Inventor:
Venanzio Bizzarri
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: Jul 5, 1996
Inventor
Venanzio Bizzarri
Assignee (at issue)
KANTHAL AB
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.