Granted Patent
Utility
US 5,613,591 · App. 07/973,669
Sortation conveyor and devices
Inventors:
Martin A. Heit, Timothy A. Koeninger, John O'Brien, John J. Wilkins, Randall P. Coons
Patented Case
View Patent ↗
Granted: Mar 25, 1997
Filed: Nov 9, 1992
Inventors
Martin A. Heit
Timothy A. Koeninger
John O'Brien
John J. Wilkins
Randall P. Coons
Assignee (at issue)
Litton Industrial Automation 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.