Granted Patent
Utility
US 4,243,748 · App. 06/042,938
Light-sensitive silver halide reproduction material
Inventors:
Gotz Elsner, Rudolf F. Legler, Margarete Popovici
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: May 29, 1979
Inventors
Gotz Elsner
Rudolf F. Legler
Margarete Popovici
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.