Granted Patent
Utility
US 5,557,960 · App. 08/222,695
Device for producing a tube, in particular a tube-shaped printing form, with a continuous circumferential surface
Inventors:
Eduard Hoffmann, Johann Winterholler, Wolfgang Prem
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Apr 4, 1994
Inventors
Eduard Hoffmann
Johann Winterholler
Wolfgang Prem
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.