Granted Patent
Utility
US 5,169,747 · App. 07/871,672
Radiation sensitive element with a dye-containing auxiliary layers
Inventors:
Robert P. Foss, Thomas D. Weaver
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Apr 21, 1992
Inventors
Robert P. Foss
Thomas D. Weaver
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.