Granted Patent
Utility
US 4,667,948 · App. 06/793,544
Apparatus for isolating offset printing plates and removing intermediate paper layers
Inventors:
Rolf Angelbeck, Reinhard Gesell, Helmut Greve, Ulrich Henke
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Oct 31, 1985
Inventors
Rolf Angelbeck
Reinhard Gesell
Helmut Greve
Ulrich Henke
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.