Granted Patent
Utility
US 5,292,412 · App. 07/683,010
Removal of mercury from waste streams
Inventor:
Oscar A. Pitton
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Apr 10, 1991
Inventor
Oscar A. Pitton
Assignee (at issue)
Eltech Systems 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.