Granted Patent
Utility
US 6,694,879 · App. 09/792,658
Erasing and cleaning device for cylinders, in particular printing-form and rubber-blanket cylinders of a printing machine
Inventors:
Alfons Schuster, Thomas Hartmann
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Feb 23, 2001
Inventors
Alfons Schuster
Thomas Hartmann
Assignee (at issue)
MAN Roland Druckmaschinen AG
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.