Granted Patent
Utility
US 4,456,674 · App. 06/516,597
Color transfer photographic processes and products
Inventors:
Leon D. Cerankowski, Gary S. LaPointe, Neil C. Mattucci
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Jul 25, 1983
Inventors
Leon D. Cerankowski
Gary S. LaPointe
Neil C. Mattucci
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.