Granted Patent
Utility
US 4,774,535 · App. 07/137,671
Instant type camera with manually operable means for removing film units from imbibition chamber
Inventor:
George D. Whiteside
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Dec 24, 1987
Inventor
George D. Whiteside
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.