IP Library Granted Patent US 4,166,752
Granted Patent Utility
US 4,166,752 · App. 05/852,898

Chemically modified asphalt compositions

Inventors: Alfred Marzocchi, Michael G. Roberts, Charles E. Bolen
Patented Case View Patent ↗
Granted: Sep 4, 1979 Filed: Nov 18, 1977
Inventors
Alfred Marzocchi
Michael G. 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,166,752
App. No.
05/852,898
Filed
1977-11-18
Granted
1979-09-04
Kind
A