Granted Patent
Utility
US 4,504,567 · App. 06/639,539
Light-sensitive lithographic printing plate
Inventors:
Takeshi Yamamoto, Kiyoshi Goto
Patented Case
View Patent ↗
Granted: Mar 12, 1985
Filed: Aug 9, 1984
Inventors
Takeshi Yamamoto
Kiyoshi Goto
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.