Granted Patent
Utility
US 4,452,880 · App. 06/385,655
Process for developing positive photosensitive lithographic printing plate
Inventors:
Minoru Seino, Atsuo Yamazaki, Toru Aoki, Akihiko Suzuki
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: May 18, 1982
Inventors
Minoru Seino
Atsuo Yamazaki
Toru Aoki
Akihiko Suzuki
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.