Granted Patent
Utility
US 4,363,886 · App. 06/299,619
Preparation of amphoteric water-in-oil self-inverting polymer emulsion
Inventors:
Stanley A. Lipowski, John J. Miskel, Jr.
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Sep 4, 1981
Inventors
Stanley A. Lipowski
John J. Miskel, Jr.
Assignee (at issue)
Diamond Shamrock Corporation
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.