Granted Patent
Utility
US 5,752,650 · App. 08/678,728
Shipping carton with flap holder for preventing spillage of packing material
Inventor:
David E. Henderson
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Jul 10, 1996
Inventor
David E. Henderson
Assignee (at issue)
Free-Flow Packaging International, 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.