Granted Patent
Utility
US 4,547,225 · App. 06/607,858
Additives for hot mix asphalt
Inventors:
Anthony V. Grossi, Louis T. Hahn, Alfred Marzocchi
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: May 7, 1984
Inventors
Anthony V. Grossi
Louis T. Hahn
Alfred Marzocchi
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.