Granted Patent
Utility
US 5,407,792 · App. 08/220,327
Photosensitive silver halide recording material with reduced pressure sensitivity
Inventor:
Reinhold Ruger
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Mar 30, 1994
Inventor
Reinhold Ruger
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.