Granted Patent
Utility
US 4,518,741 · App. 06/597,556
Chemically modified asphalts and glass fibers treated therewith
Inventors:
William E. Uffner, Robert N. White
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Apr 6, 1984
Inventors
William E. Uffner
Robert N. White
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.