Granted Patent
Utility
US 4,854,791 · App. 07/182,598
Container door barricade
Inventor:
James T. Brown
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Apr 18, 1988
Inventor
James T. Brown
Assignee (at issue)
Bethlehem Steel Corporation
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.