Granted Patent
Utility
US 5,565,581 · App. 07/599,763
Epoxidation of olefins
Inventor:
Mark A. Liepa
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Oct 18, 1990
Inventor
Mark A. Liepa
Assignee (at issue)
Arco Chemical Technology, L.P.
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.