Granted Patent
Utility
US 6,367,684 · App. 09/306,596
Method and device for working a weld on a support sleeve
Inventors:
Eduard Hoffmann, Alfons Grieser, Johann Winterholler
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: May 6, 1999
Inventors
Eduard Hoffmann
Alfons Grieser
Johann Winterholler
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.