Granted Patent
Utility
US 6,640,705 · App. 09/568,432
Rotary printing machine with a plate cylinder, a transfer cylinder and an impression cylinder
Inventors:
Helmut Stuhlmiller, Reinhard Zeller, Eduard Hoffman
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: May 10, 2000
Inventors
Helmut Stuhlmiller
Reinhard Zeller
Eduard Hoffman
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.