Granted Patent
Utility
US 4,432,780 · App. 06/412,337
Glass fiber scrap reclamation
Inventors:
Mark A. Propster, Charles M. Hohman, William L. Streicher
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Aug 27, 1982
Inventors
Mark A. Propster
Charles M. Hohman
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.