Granted Patent
Utility
US 5,594,522 · App. 08/312,420
Cassette for enclosing a plurality of negative film units
Inventors:
Harry R. Parsons, Robert M. Curry, Jr., Stephen G. Gilvar
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Sep 26, 1994
Inventors
Harry R. Parsons
Robert M. Curry, Jr.
Stephen G. Gilvar
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.