Granted Patent
Utility
US 4,258,017 · App. 06/060,715
Vanadium removal from furnace gases
Inventor:
Dennis B. Gelfand
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: Jul 26, 1979
Inventor
Dennis B. Gelfand
Assignee (at issue)
UOP LLC
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.