Granted Patent
Utility
US 4,591,255 · App. 06/675,853
Apparatus for moving coated section of sheet material into and out of engagement with film frame
Inventors:
Paul B. Mason, John B. Morse
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Nov 28, 1984
Inventors
Paul B. Mason
John B. Morse
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.