Granted Patent
Utility
US 4,933,754 · App. 07/371,657
Method and apparatus for producing modified photographic prints
Inventors:
William G. Reed, Maxwell G. Maginness
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Jun 20, 1989
Inventors
William G. Reed
Maxwell G. Maginness
Assignee (at issue)
Ciba-Geigy
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.