Granted Patent
Utility
US 6,815,154 · App. 10/627,164
Silver bromoiodide core-shell grain emulsion
Inventors:
Davide Pirotto, Massimiliano Scioscia, Dario Stefanini, Luisa Tavella
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jul 25, 2003
Inventors
Davide Pirotto
Massimiliano Scioscia
Dario Stefanini
Luisa Tavella
Assignee (at issue)
Ferrania, S.p.A.
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.