Granted Patent
Utility
US 4,533,486 · App. 06/653,176
Sulfated addition products of selected unsaturated dicarboxylic acids and poly(oxyalkylated) alcohols as anionic surfactants
Inventors:
Michael Scardera, John G. Bayusik
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Sep 24, 1984
Inventors
Michael Scardera
John G. Bayusik
Assignee (at issue)
Olin 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.