Granted Patent
Utility
US 4,389,574 · App. 06/222,110
Method and apparatus for detecting a break in a plurality of glass fibers
Inventors:
Frederick M. Shofner, Neil E. Greene, Terry Joe Hanna
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Jan 2, 1981
Inventors
Frederick M. Shofner
Neil E. Greene
Terry Joe Hanna
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.