Granted Patent
Utility
US 5,928,402 · App. 08/905,496
Multi-screen system for mixing glass flow in a glass bushing
Inventors:
David R. Mirth, Irvin J. Bence
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Aug 4, 1997
Inventors
David R. Mirth
Irvin J. Bence
Assignee (at issue)
Owens-Corning Fiberglas Technology, 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.