Granted Patent
Utility
US 6,701,847 · App. 10/122,540
Method of varying the ink density of the full tone in offset printing within a rotary printing machine
Inventor:
Armin Weichmann
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Apr 15, 2002
Inventor
Armin Weichmann
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.