Granted Patent
Utility
US 4,391,371 · App. 06/377,695
Fiberboard shipping container having laminated spacing members
Inventor:
William G. Sieffert
Patented Case
View Patent ↗
Granted: Jul 5, 1983
Filed: May 13, 1982
Inventor
William G. Sieffert
Assignee (at issue)
Champion International Corporation Limited
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.