Granted Patent
Utility
US 4,544,626 · App. 06/535,294
Photoprinting process and apparatus for exposing photopolymers
Inventor:
Donald F. Sullivan
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Sep 23, 1983
Inventor
Donald F. Sullivan
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.