Granted Patent
Utility
US 4,645,323 · App. 06/840,074
Film processor
Inventor:
Joseph A. Stella
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Mar 17, 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.