Granted Patent
Utility
US 4,832,257 · App. 07/186,885
Corner structure and blank for a tray
Inventor:
Prentice J. Wood
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Apr 27, 1988
Inventor
Prentice J. Wood
Assignee (at issue)
The Mead 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.