Granted Patent
Utility
US 4,317,982 · App. 06/035,688
Orifice for coupling an electron beam gun to print form cylinders
Inventors:
Heinz Taudt, Dieter Grieger, Siegfried Beisswenger
Patented Case
View Patent ↗
Granted: Mar 2, 1982
Filed: May 3, 1979
Inventors
Heinz Taudt
Dieter Grieger
Siegfried Beisswenger
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.