Granted Patent
Utility
US 4,693,752 · App. 06/853,258
Coating grade asphalt
Inventor:
Samir F. Elias
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Apr 17, 1986
Inventor
Samir F. Elias
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.