Abstract: A frame is made from a one-piece paperboard blank which is folded and glued into a collapsed shipment and storage configuration. The collapsed frame can be manually expanded for use. The corners of the expanded frame are locked by overlapping tabs to hold the frame in its expanded state. The frame can be used to hold air filters which are used to filter the air entering a hot air furnace.

Abstract: A frame is made from a one-piece paperboard blank which is formed in a collapsed shipment and storage blank configuration. The collapsed frame can be manually expanded for use. The corners of the expanded frame are locked by locking tabs and locking slots which hold the frame in its expanded state. The frame can be used to hold air filters which are used to filter the air entering a hot air furnace.

Abstract: A carton provided with a carrying handle on the top wall. The handle comprises a plastic strip folded back on itself adjacent one end with an accordion pleat. The ends of the strip are affixed to the inner surface of the lower of two overlying flaps forming the top wall. The strip extends through complemental openings in the overlying flaps forming the top wall, and can be extended vertically because of the pleated end to form a hand hold. A pivotable panel is hingedly connected to and cut from the lower of the two overlying flaps adjacent the openings through which the handle extends to close the opening in the top wall to preclude contaminants from entering the interior of the carton through the openings.

Abstract: A display package for an article including a front support sheet having an opening; a rear support sheet coupled to the front sheet; a flexible sheet having a portion extending from the front sheet, spanning the opening and receiving the article; and a third support sheet received inside and adjacent the flexible sheet. The third support sheet is advantageously formed from the material cut from the first sheet to form the opening. The third sheet not only adds additional support for the flexible sheet and the article but also provides additional space on the package for printed matter.

Abstract: Disclosed is a carton which is especially adapted for heating food products in microwave ovens. The bottom surface of the carton is cut to define a plurality of spaced apertures, each of which is closed by removable means. A strip of film is secured to the bottom surface of the carton and the removable means so that, upon removal of the film prior to heating, the means are removed with the film to provide vent holes which allow moisture vapor generated during heating to escape. In a preferred embodiment, the carton has two separable compartments joined by a common top and two common side walls with an intermittent cut line extending across the top and down the common side walls to permit separation of the two compartments. The compartments have individual bottom panels, each of which is cut to provide a plurality of removable tabs held within spaced apertures by spaced nicks.

Abstract: A paperboard cover adapted for being marginally secured to a popcorn container comprises circular and semicircular cut scores defining a lift tongue therebetween. The end part of the lift tongue is provided with an easy lift tab and communicates with a cutout area. The cutout area is covered by an easy lift protective flat piece that at least partially is glued to a surface portion of the cover.

Abstract: A paperboard cover adapted for being marginally secured to a container for prepackaged foods comprises an angular cut and circular and semi-circular cut scores defining a lift tongue. A pull-tab in the form of a pressure-sensitive adhesive label or of a precut paperboard tab covers the angular cut and has a portion thereof facing the tip of the lift tongue firmly secured thereto by the adhesive while the part thereof overlapping the angular cut is easy to lift.

Abstract: A paperboard cover adapted for being marginally secured to a container for prepackaged foods comprises circular and arched cut scores defining a pull tongue therebetween. The pull tongue at its free end defines an easy lift tab communicating with a cutout area between the circular and arched cut scores. A protective paperboard tab spans the cutout area and it partially glued to the upper surface of the cover.

Abstract: A carton provided with an integral, pivotable carrying handle on the top wall. The handle is a portion of a unitary blank of paperboard stock used to form the carton. When the carton is erected, the handle can be pivoted from a substantially flat stored position on the top wall to an upright use position for carrying the carton. The handle is formed from three overlapping panels after the blank is folded to provide a handle having superior strength.

Abstract: A carton provided with an integral, pivotable carrying handle on the top wall. The handle is die-cut in a blank of paperboard stock used to form the carton. When the carton is erected, the handle can be pivoted from a sustantially flat stored position on the top wall to an upright use position for carrying the carton.