Granted Patent
Utility
US 5,358,981 · App. 08/066,598
Solvent-free water-based emulsions of anionically polymerized polymers
Inventor:
Jeffrey G. Southwick
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: May 24, 1993
Inventor
Jeffrey G. Southwick
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.