Granted Patent
Utility
US 4,460,679 · App. 06/514,174
Low coating weight silver halide element
Inventor:
Frank Leonard Schadt, III
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Jul 15, 1983
Inventor
Frank Leonard Schadt, III
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.