Granted Patent
Utility
US 4,473,388 · App. 06/463,955
Process for melting glass
Inventor:
Eddy J. Lauwers
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Feb 4, 1983
Inventor
Eddy J. Lauwers
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.