Granted Patent
Utility
US 5,550,624 · App. 08/318,701
Electrophotographic printing device for the simultaneous printing of both sides of a recording medium
Inventor:
Rudolf Wachtler
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Oct 11, 1994
Inventor
Rudolf Wachtler
Assignee (at issue)
Siemens Nixdorf Informationssysteme 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.