Granted Patent
Utility
US 4,565,733 · App. 06/605,925
Packaging material for photosensitive materials
Inventor:
Mutsuo Akao
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: May 1, 1984
Inventor
Mutsuo Akao
Assignee (at issue)
Fujitsu Limited
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.