Granted Patent
Utility
US 4,821,880 · App. 07/230,727
Palletized structure containing spools
Inventor:
Louis G. Ditton
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Aug 5, 1988
Inventor
Louis G. Ditton
Assignee (at issue)
Essex Group LLC
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.