Granted Patent
Utility
US 4,440,721 · App. 06/465,889
Aqueous liquids containing metal cavitation-erosion corrosion inhibitors
Inventors:
Joe C. Wilson, Stanley T. Hirozawa, John J. Conville
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Feb 11, 1983
Inventors
Joe C. Wilson
Stanley T. Hirozawa
John J. Conville
Assignee (at issue)
BASF Wyandotte 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.