Granted Patent
Utility
US 4,448,917 · App. 06/455,789
Size for glass fibers
Inventors:
Denny E. Black, David Garrett
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Jan 6, 1983
Inventors
Denny E. Black
David Garrett
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.