Granted Patent
Utility
US 5,281,515 · App. 07/928,321
Thermally developable photographic elements
Inventors:
Ivano Delprato, Stefano Mana, Cristina Soncini
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Aug 12, 1992
Inventors
Ivano Delprato
Stefano Mana
Cristina Soncini
Assignee (at issue)
Minnesota Mining and Manufacturing 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.