Granted Patent
Utility
US 4,246,141 · App. 06/036,801
Catalyst for incinerating H.sub.2 S to SO.sub.2
Inventors:
Robert H. Hass, Rowland C. Hansford
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: May 7, 1979
Inventors
Robert H. Hass
Rowland C. Hansford
Assignee (at issue)
Union Oil Company of California
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.