Granted Patent
Utility
US 5,443,195 · App. 08/129,981
Device for removing knockouts, such as scrap, from a sheet of material containing blanks or similar
Inventor:
Rolf Sinn
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Sep 30, 1993
Inventor
Rolf Sinn
Assignee (at issue)
KARL MARBACH GMBH & CO. KG
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.