Granted Patent
Utility
US 4,600,646 · App. 06/640,821
Metal oxide stabilized chromatography packings
Inventor:
Richard W. Stout
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Aug 15, 1984
Inventor
Richard W. Stout
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.