Granted Patent
Utility
US 5,515,993 · App. 08/354,332
Hinged semi-rigid container having wall stiffening means
Inventor:
Michael W. McManus
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Dec 12, 1994
Inventor
Michael W. McManus
Assignee (at issue)
Tenneco Plastics Company
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.