Granted Patent
Utility
US 6,203,711 · App. 09/316,600
Method for treatment of substantially aqueous fluids derived from processing inorganic materials
Inventor:
Robert Harvey Moffett
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: May 21, 1999
Inventor
Robert Harvey Moffett
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.