Granted Patent
Utility
US 4,600,524 · App. 06/559,517
Composition and method for inhibiting scale
Inventors:
Dionisio G. Cuisia, Chih M. Hwa
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Dec 8, 1983
Inventors
Dionisio G. Cuisia
Chih M. Hwa
Assignee (at issue)
W. R. Grace & Co.
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.