Granted Patent
Utility
US 5,555,809 · App. 08/465,132
Erasable printing form
Inventors:
Alfred Hirt, Barbara N ussel, Robert Weiss
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jun 5, 1995
Inventors
Alfred Hirt
Barbara N ussel
Robert Weiss
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.