Granted Patent
Utility
US 4,587,370 · App. 06/741,331
Aromatic hydrocarbon alkylation process product recovery method
Inventor:
Richard R. DeGraff
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jun 5, 1985
Inventor
Richard R. DeGraff
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.