Granted Patent
Utility
US 6,640,956 · App. 09/654,632
Method of coin detection and bag stopping for a coin sorter
Inventors:
Robert L. Zwieg, Robert F. Fredrick, John P. Grajewski, John A. Kressin, Thomas S. Murphy, Jon R. Stieber
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Sep 5, 2000
Inventors
Robert L. Zwieg
Robert F. Fredrick
John P. Grajewski
John A. Kressin
Thomas S. Murphy
Jon R. Stieber
Assignee (at issue)
De La Rue Cash Systems Inc.
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.