Granted Patent
Utility
US 4,985,128 · App. 07/463,899
Process for preparation of electrophoresis
Inventors:
Richard C. Ebersole, Robert P. Foss
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jan 9, 1990
Inventors
Richard C. Ebersole
Robert P. Foss
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.