Granted Patent
Utility
US 6,372,013 · App. 09/570,109
Carrier material and desulfurization agent for desulfurizing iron
Inventors:
Harry E. Trout, James M. Wilson
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: May 12, 2000
Inventors
Harry E. Trout
James M. Wilson
Assignees (at issue)
Marblehead Lime, Inc.
Wacson, Inc.
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.