Granted Patent
Utility
US 4,347,271 · App. 06/255,587
Fibrous product
Inventor:
Richard F. Shannon
Patented Case
View Patent ↗
Granted: Aug 31, 1982
Filed: Apr 20, 1981
Inventor
Richard F. Shannon
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.