Granted Patent
Utility
US 4,772,647 · App. 07/122,490
Asphalt rubber emulsions
Inventors:
Anthony V. Grossi, G. Fred Willard
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Oct 26, 1987
Inventors
Anthony V. Grossi
G. Fred Willard
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.