Granted Patent
Utility
US 5,214,082 · App. 07/920,693
Asphalt acrylic monomer-containing polymer composition
Inventors:
Richard Gelles, Donn A. DuBois
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Jul 28, 1992
Inventors
Richard Gelles
Donn A. DuBois
Assignee (at issue)
SHELL OIL COMPANY
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.