Granted Patent
Utility
US 4,111,306 · App. 05/798,025
Self-contained baking tray carton
Inventor:
Harry I. Roccaforte
Patented Case
View Patent ↗
Granted: Sep 5, 1978
Filed: May 18, 1977
Inventor
Harry I. Roccaforte
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.