Granted Patent
Utility
US 4,300,932 · App. 06/126,086
Apparatus for forming mineral fibers
Inventors:
John D. Phillips, William W. Schultz
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Feb 29, 1980
Inventors
John D. Phillips
William W. Schultz
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.