Granted Patent
Utility
US 5,118,435 · App. 07/615,767
Anti-icing compositions containing thickener blend having polyacrylic acid and copolymer of acrylic acid and hydrophobic vinyl monomer
Inventor:
Edward C. Y. Nieh
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Nov 19, 1990
Inventor
Edward C. Y. Nieh
Assignee (at issue)
Texaco Chemical Inc.
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.