Granted Patent
Utility
US 6,358,671 · App. 08/715,559
Methods and compositions for imaging and cleaning lithographic printing plates
Inventors:
Thomas E. Lewis, Susan Lanphear
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Sep 18, 1996
Inventors
Thomas E. Lewis
Susan Lanphear
Assignee (at issue)
PRESSTEK, LLC.
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.