Granted Patent
Utility
US 4,287,380 · App. 06/076,580
Electrode assembly for molten glass forehearth
Inventors:
Richard Fairbanks, James F. Stevenson, John F. Blumenfeld
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Sep 18, 1979
Inventors
Richard Fairbanks
James F. Stevenson
John F. Blumenfeld
Assignee (at issue)
Emhart Industries, Inc.
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.