Granted Patent
Utility
US 6,558,875 · App. 09/625,362
Method for treating photosensitive lithographic printing plate
Inventors:
Eriko Toshimitsu, Hideaki Okamoto
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jul 25, 2000
Inventors
Eriko Toshimitsu
Hideaki Okamoto
Assignee (at issue)
MITSUBISHI CHEMICAL 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.