Granted Patent
Utility
US 4,283,379 · App. 06/050,192
Method for removing hydrogen sulfide from gas streams
Inventors:
Donald M. Fenton, Hugh W. Gowdy
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Jun 20, 1979
Inventors
Donald M. Fenton
Hugh W. Gowdy
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.