Granted Patent
Utility
US 5,985,979 · App. 08/094,591
Process for making stable latexes of block copolymers
Inventors:
Jeffrey G. Southwick, David M. Austgen, Jr.
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jul 20, 1993
Inventors
Jeffrey G. Southwick
David M. Austgen, Jr.
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.