Granted Patent
Utility
US 6,821,434 · App. 10/025,718
System for removal of arsenic from water
Inventors:
Robert C. Moore, D. Richard Anderson
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Dec 19, 2001
Inventors
Robert C. Moore
D. Richard Anderson
Assignee (at issue)
Sandia 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.