Granted Patent
Utility
US 5,859,306 · App. 08/811,164
Method of treating arsenic-contaminated matter using aluminum compounds
Inventor:
Robert Stanforth
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Mar 4, 1997
Inventor
Robert Stanforth
Assignee (at issue)
RMT LIMITED
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.