Manville Service Corporation

Harold D Johnson

Earle C Sherman

Leonard M Cooper

A resealable paperboard package has all surfaces thereof coated with a moisture resistant, non-slippable, heat sealable material and is provided with outwardly biased side panel extensions located about the upper periphery of the base which intimately contact the side panels of the top to form a seal between the base and the top even when the top is replaced on the base after the package has been opened. A flexible sheet is heat sealed to the upper periphery of the base.

Resealable paperboard package

A new and improved ovenable paperboard carton for use in a microwave and conventional oven is disclosed. The improved carton comprises a bottom tray having a plurality of side panels with gusset panels attached thereto and combines the bottom tray with a new and improved upper lid which has a central top panel and a plurality of side panels hingedly attached thereto. The upper lid contains a pair of strategically placed reverse cuts which form a tear-off portion for the carton. The tear-off portion is designed to provide corner reinforcement to the package. When the tear-off portion is removed from the upper lid, a pair of structurally supporting channels are formed along opposite edges of the carton to add stability, with the corner reinforcement, to the package upon removal of the lid. The upper lid is adhesively secured to the bottom tray to further enhance the rigidity of the package.

Growing community of inventors

Bourbonnais, IL, United States of America

Harold D Johnson