Granted Patent
Utility
US 5,604,270 · App. 08/117,471
Chemical treating composition for glass fibers having emulsified epoxy with good stability and the treated glass fibers
Inventors:
Michael W. Klett, Kenneth D. Beer
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: Sep 7, 1993
Inventors
Michael W. Klett
Kenneth D. Beer
Assignee (at issue)
PPG 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.