Granted Patent
Utility
US 6,418,755 · App. 09/824,700
Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element
Inventor:
Vaughn Charles Chenoweth
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Apr 4, 2001
Inventor
Vaughn Charles Chenoweth
Assignee (at issue)
Guardian Fiberglass, 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.