Granted Patent
Utility
US 5,384,232 · App. 08/040,247
Process for rapid access development of silver halide films using pyridinium as development accelerators
Inventors:
Julie C. Bishop, Dominic M. Chan, Dennis S. Donald, Ludovic Fodor, William R. Pangratz, Glenn M. Russo, John R. Shock
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Mar 30, 1993
Inventors
Julie C. Bishop
Dominic M. Chan
Dennis S. Donald
Ludovic Fodor
William R. Pangratz
Glenn M. Russo
John R. Shock
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.