Granted Patent
Utility
US 4,759,563 · App. 06/855,516
Self unloading multiple trailer arrangement
Inventor:
Boyd B. Nash
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Apr 23, 1986
Inventor
Boyd B. Nash
Assignee (at issue)
Independent Trailer & Repair, 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.