Granted Patent
Utility
US 5,292,612 · App. 07/936,513
Film-sheet assemblage for peel-apart self-developing film
Inventors:
Leonard Polizzotto, Robert J. Boyea
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Aug 28, 1992
Inventors
Leonard Polizzotto
Robert J. Boyea
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.