Granted Patent
Utility
US 4,779,110 · App. 06/922,328
Wet film cassette and transport system
Inventor:
Joseph A. Stella
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Oct 23, 1986
Inventor
Joseph A. Stella
Assignee (at issue)
Polaroid Corporation
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.