Granted Patent
Utility
US 4,248,936 · App. 06/043,065
Asphalt-coated glass fibers
Inventors:
Alfred Marzocchi, Michael C. Roberts, Charles E. Bolen
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: May 29, 1979
Inventors
Alfred Marzocchi
Michael C. Roberts
Charles E. Bolen
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.