Granted Patent
Utility
US 6,148,728 · App. 09/288,035
Method for cleaning a printing plate and apparatus for cleaning the printing plate
Inventors:
Ki Chul Shin, Kyung-Eun Lee
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Apr 8, 1999
Inventors
Ki Chul Shin
Kyung-Eun Lee
Assignee (at issue)
SAMSUNG DISPLAY 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.