Patent Abstract: A temperature resistant molded plastic device is described for use in boxes or packages such as pizza boxes where there is a tendency of large cover portions to sag downwardly to damage the soft pizza or other packaged products. In use, the saver is positioned near the center of the package to support the box cover for protecting the contents.
Who invented the circular thing that keeps the pizza from hitting the inside of the box top?" Guess what - the first one was invented by Carmela Vitale.
Pizza Package Saver
USPTO
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