Granted Patent
Utility
US 5,312,931 · App. 08/130,926
Recovery of 3,4-epoxy-1-butene from 1,3,-butadiene oxidation effluents
Inventor:
Jerome Leonard Stavinoha, Jr.
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Oct 4, 1993
Inventor
Jerome Leonard Stavinoha, Jr.
Assignee (at issue)
Eastman Chemical Company
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.