Granted Patent
Utility
US 4,626,341 · App. 06/812,160
Process for mercaptan extraction from olefinic hydrocarbons
Inventor:
Thomas A. Verachtert
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Dec 23, 1985
Inventor
Thomas A. Verachtert
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.