Granted Patent
Utility
US 6,403,284 · App. 09/029,575
Process for producing photosensitive resin printing plate and treating solution
Inventor:
Masahiro Yoshida
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Mar 6, 1998
Inventor
Masahiro Yoshida
Assignee (at issue)
ASAHI KASEI KOGYO 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.