Granted Patent
Utility
US 4,470,237 · App. 06/398,535
Strip shingles with foamed asphalt as the tab seal adhesive and method of manufacture
Inventors:
William W. Lincoln, Glenn D. Lamb
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Jul 15, 1982
Inventors
William W. Lincoln
Glenn D. Lamb
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.