Granted Patent
Utility
US 4,847,410 · App. 07/079,554
Block co-polymers useful as aqueous dispersants
Inventors:
Donald L. Lickei, Michael L. Rosin, Ming-Tung Shen
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jul 30, 1987
Inventors
Donald L. Lickei
Michael L. Rosin
Ming-Tung Shen
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.