Granted Patent
Utility
US 4,440,304 · App. 06/358,334
Protective pads with self-locking panels and blank therefor
Inventor:
Matthew S. Konopko
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Mar 15, 1982
Inventor
Matthew S. Konopko
Assignee (at issue)
Stone Container 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.