Granted Patent
Utility
US 6,044,667 · App. 09/342,224
Glass melting apparatus and method
Inventor:
Vaughn Charles Chenoweth
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Jun 29, 1999
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.