Granted Patent
Utility
US 4,776,162 · App. 07/109,670
Method and apparatus for the manufacture of glass fiber bulk strand roving
Inventors:
Hellmut I. Glaser, William L. Streicher
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Oct 19, 1987
Inventors
Hellmut I. Glaser
William L. Streicher
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.