Granted Patent
Utility
US 4,935,101 · App. 07/420,859
Process for the recovery of a water-insoluble epoxy alcohol
Inventors:
Wilfred P. Shum, Christopher J. Sowa
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Oct 13, 1989
Inventors
Wilfred P. Shum
Christopher J. Sowa
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.