Granted Patent
Utility
US 5,837,145 · App. 08/862,204
Method for treating water contaminated with cyanide
Inventors:
David A. Dzombak, Rajat Ghosh, Richard G. Luthy
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: May 23, 1997
Inventors
David A. Dzombak
Rajat Ghosh
Richard G. Luthy
Assignee (at issue)
Aluminum Company of America
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.