Granted Patent
Utility
US 4,608,895 · App. 06/589,505
Rotary die cutting
Inventors:
Jerry L. Bell, John D. Douma, David P. Keinath, Robert E. Moore
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Mar 14, 1984
Inventors
Jerry L. Bell
John D. Douma
David P. Keinath
Robert E. Moore
Assignee (at issue)
Bernal Rotary 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.