Granted Patent
Utility
US 4,088,569 · App. 05/817,872
Mercaptan oxidation in a liquid hydrocarbon with a metal phthalocyanine catalyst
Inventor:
Walter M. Douglas
Patented Case
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Granted: May 9, 1978
Filed: Jul 21, 1977
Inventor
Walter M. Douglas
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.