Granted Patent
Utility
US 5,028,512 · App. 07/432,354
Method of manufacturing photosensitive printing plates comprising applying a powdered surface
Inventors:
Toshio Nagatani, Minoru Seino, Toru Okamoto, Chihiro Eguchi
Patented Case
View Patent ↗
Granted: Jul 2, 1991
Filed: Nov 3, 1989
Inventors
Toshio Nagatani
Minoru Seino
Toru Okamoto
Chihiro Eguchi
Assignee (at issue)
Konica Corporation and Mitsubishi Kasei 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.