Granted Patent
Utility
US 4,483,008 · App. 06/342,856
Arc gap controller for glass-melting furnace
Inventor:
Eugene C. Varrasso
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Jan 26, 1982
Inventor
Eugene C. Varrasso
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.