Granted Patent
Utility
US 4,251,396 · App. 06/015,574
Copper chromite catalyst for preparation of furfuryl alcohol from furfural
Inventors:
Leo J. Frainier, Herman Fineberg
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Feb 26, 1979
Inventors
Leo J. Frainier
Herman Fineberg
Assignee (at issue)
Ashland Oil, Inc.
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.