Granted Patent
Utility
US 4,637,951 · App. 06/685,699
Fibrous mat facer with improved strike-through resistance
Inventors:
Frederick A. Gill, Mario P. Tocci
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Dec 24, 1984
Inventors
Frederick A. Gill
Mario P. Tocci
Assignee (at issue)
Manville Sales Corporation
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.