Granted Patent
Utility
US 4,470,203 · App. 06/446,837
Cooling asphaltic strip material
Inventors:
Hugh W. Bradley, Albert J. Blackwood, Thomas R. Brady, Donald R. Miller
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Dec 6, 1982
Inventors
Hugh W. Bradley
Albert J. Blackwood
Thomas R. Brady
Donald R. Miller
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.