...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7414230 | Package with removable portion Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and... | 08/19/2008 |
| 7141771 | Microwave cooking tray with multiple floor patterns A microwave cooking tray comprises a base having at least two compartments. Each compartment of the base has a bottom surface defining a pattern, the bottom surface of one of the compartments defining a first pattern and a bottom surface of a second of the compartme... | 11/28/2006 |
| 6935557 | Separable bowl forming carton A separable bowl forming carton retains an inner package, wherein the separable bowl forming packaging is selectively separated into separate components which can be deformed along preset fold lines to define a bowl periphery having a greater number of facets than t... | 08/30/2005 |
| 6915949 | Multi-layered pizza pie box A rectangular box for transporting multiple pizza pies in a stacked formation formed by a single cardboard blank having scoring and cut-outs for assembling into a multiple pizza box. The box has a bottom wall, four side walls and a lid hinged to one of the side wall... | 07/12/2005 |
| 6781101 | Reconfigurable microwave package for cooking and crisping food products A reconfigurable microwave packaging container is provided for containing, heating, and crisping at least one surface of at least one food product. The container includes a reconfigurable first panel having a flap that is at least partially separable from the contai... | 08/24/2004 |
| 6559431 | Microwave cooking tray and sleeve assembly A Microwave Cooking Tray and Sleeve Assembly comprises a tray for holding food to be cooked, a transparent heat seal covering the tray, and a sleeve designed to hold the tray. In order to cook the food in the tray, the assembly is placed in a microwave ov... | 05/06/2003 |
| 6509105 | Method of making a composite of paper and plastic film and composites Composites of paper and bioriented polyester plastic film are made by passing a web of paperboard and a web of plastic film, with a layer of extruded molten polymer impregnating and bonding agent between the webs, through a nip. The process involves contr... | 01/21/2003 |
| 6350974 | Handled, microwave popcorn service apparatus A handled, microwave popcorn service apparatus is provided for cooking and serving popcorn. A service bowl container is formed of a thermoplastic microwave penetrable material. The service container includes a dispensing tube and an access lid.... | 02/26/2002 |
| 6308833 | Food packaging system A food packaging system for a food product such as an uncooked deep dish pizza includes an aluminum pan for receiving the food product. A paperboard ring is placed over the upper rim of the pan to provide a local shield, retarding the cooking time of the ... | 10/30/2001 |
| 6119862 | Package for a food product with display tabs A package for a food product which includes a rigid tray formed from a single piece of malleable material having flanges located in a reference plane, first and second side walls, first and second end walls and a bottom all integrally joined. Integrally f... | 09/19/2000 |
| 6102281 | Partially-shield microwave heating tray A partially-shielded paperboard tray for heating food in a microwave oven is made from a unitary blank having two sections hingedly joined at a common edge. One section, which forms the bottom stratum of the tray, has a layer of aluminum foil for shieldin... | 08/15/2000 |
| 5948308 | Food product tray with expandable side panels An improved food product tray for storing, cooking and serving food products. The food product tray is used to store, cook and serve a food product without assembly or disassembly by the end user. The food product tray includes a floor or base panel and a... | 09/07/1999 |
| 5900264 | Food package including a tray and a sleeve surrounding the tray A food package including a tray and a sleeve surrounding the tray. The tray includes a base defining an opening and a sidewall extending from the base which terminates in a free edge. The free edge defines a tray opening. The sleeve includes a top panel p... | 05/04/1999 |
| 5839652 | Box for food products A microwavable box constructed from a blank, having a box base forming area (12), two pairs of opposing side sections (14) and (16) each with a collapsible web (18) between them, flaps (26) extending from each of the three sides and a lid (28) which inclu... | 11/24/1998 |
| 5780824 | Expandable and self-venting novelty container for cooking microwavable popcorn The invention provides a sealed, expandable, automatically self-venting container for cooking microwavable foods in a microwave oven. The container has a pull-tab lid, a vent-hole, a vent-hole cover, an expandable casing, and a microwavable food charge su... | 07/14/1998 |
| 5718370 | Partially shielded microwave heating container A paperboard container for heating products placed therein by microwave energy having a first compartment substantially shielded from microwave energy and a second compartment permeable by microwave energy. The first and second compartments each include a... | 02/17/1998 |
| 5641118 | Package with improved removable strip A package for containing solids and other consumable contents is provided that includes a tray having walls and a bottom panel defining a container space and a tray cover having a lid wall panel that encloses the container space. The package thus closed e... | 06/24/1997 |
| 5588587 | Dual ovenable food package A package for either conventional oven or microwave heating of refrigerated or frozen foodstuffs includes an outer paperboard container and an inner food carrying tray or dish. The bottom of the plastic tray rests on the container bottom. The dish is flan... | 12/31/1996 |
| 5565228 | Ovenable food product tray and an ovenable food product package A food product tray including a base defining an opening and a floor member covering the opening. The floor member has an edge portion thereof secured to the base such that the floor member substantially directly supports the food product in the tray. A f... | 10/15/1996 |
| 5510132 | Method for cooking a food item in microwave heating package having end flaps for elevating and venting the package A microwave heating package for containing a food item to be cooked in a microwave oven including a top wall, a bottom wall and a side wall. A microwave interactive layer is affixed to the bottom wall for converting microwave energy into heat. The side wa... | 04/23/1996 |
| 5484984 | Ovenable food package including a base with depending leg member and a plurality of raised portions and associated food packages An ovenable food package for holding a food product. The package has a base which is constructed and arranged such that at least one exterior gap is created between the base and the support surface of the oven (conventional or microwave) in which the pack... | 01/16/1996 |
| 5455086 | Paperboard container having polymethylpentene coating A blank for a paperboard container is provided on one of its surfaces with a layer of food-contacting polymethylpentene. The container formed from the blank, as by bending the blank along fold lines, requires one or more overlapped joints such as the usua... | 10/03/1995 |
| 5425972 | Heat sealed, ovenable food carton lids Lids and/or closures applied to cartons which are used for distributing, marketing and heating small portions of prepared food are fabricated with a paperboard structural substrate coated with a heat activated (or sealable) coating of water soluble acryli... | 06/20/1995 |
| 5421510 | Container/lid assembly for paperboard food packages which utilizes press-applied coatings as a sealing medium This invention relates to paperboard food packages. Such structures of this type, generally, have lids which can be sealed to the food package which utilizes press-applied coatings as a sealing medium.... | 06/06/1995 |
| 5419486 | Multi-sided container A multi-sided container for storing and heating food prepared from a blank of paperboard includes a bottom panel and upstanding end, corner and side walls. A first set of angular panels are connected to the corner walls and the base panel. The first angul... | 05/30/1995 |
| 5416305 | Microwave heating package and method for achieving oven baked quality for sandwiches A package for microwave heating of a sandwich product which normally contains a bread component and non bread components which are either inserted into the bread or deposited on the bread. The non bread components, such as meats, chicken, fish, cheese, ve... | 05/16/1995 |
| 5369256 | Packaging capable of microwave heating A packaging container for use in connection with microwave cooking of foodstuffs is provided. The container can be opened up so as to define an extended base area, allowing foodstuffs comprising individual items to be spread out during cooking. The extens... | 11/29/1994 |
| 5300748 | Recyclable microwavable container with a hinged removable outer shell A microwavable container useful in the microwave heating of items, particularly foodstuffs, comprises readily separable components. An outer shell which will remain relatively cool and, therefore, capable of being handled, is flexibly hinged to an inner s... | 04/05/1994 |
| 5256427 | Paperboard container having polymethylpentene coating A blank for a paperboard container is provided on one of its surfaces with a layer of food-contacting polymethylpentene. The container formed from the blank, as by bending the blank along fold lines, requires one or more overlapped joints such as the usua... | 10/26/1993 |
| 5253802 | Foldable, microwavable baking pan usable as a promotional device A pan (10) is formed from a single blank (12) of plastic-coated paperboard and is foldable between a three-dimensional, erect condition and a flat condition. In the flat condition, first and second isosceles trapezoid-shaped side panels (20) are folded ab... | 10/19/1993 |
| 5252793 | Microwave container assembly A microwaveable package containing foodstuff is for direct placement with or without opening same, in a microwave oven so that the foodstuff can be microwave cooked. The foodstuff rests on a sheet of microwave receptor material and the package is designed... | 10/12/1993 |
| 5242078 | Biodegradable ribbed dish A receptacle made of a starch-based biodegradable material is formed with a side wall, and a generally flat floor formed with an array of criss-cross upstanding ridges projecting from and unitary with a surface of the floor and meeting at intersections. E... | 09/07/1993 |
| 5242106 | Closed carton assembly with improved opening facilitating cuts A food package including a closed carton containing a food product, the closed carton including a carton tray and a carton closure. The carton closure having cuts therein which include (1) cuts in the lid flap providing an opening tab hinged along the fro... | 09/07/1993 |
| 5241150 | Microwave food package A microwave food package having a chamber for receipt of a foodstuff. An orifice is formed in the package for dispensing the foodstuff in a flowable state after heating in a microwave oven. The package is insulated to permit handling of the package immedi... | 08/31/1993 |
| 5178294 | Packaging container A packaging container particularly suitable for retail sale of pre-prepared foodstuffs comprises an inner generally cup-like portion (2) located substantially entirely within an outer portion (3). The inner portion is formed of a microwave compatible plas... | 01/12/1993 |
| 5153402 | Paperboard container for microwave cooking A microwave cooking tray for microwave ovenable foodstuffs which usually display browned or crisped areas upon conventional oven cooking. The container is formed from a one piece blank of dielectric material, such as paperboard, which is bent and folded t... | 10/06/1992 |
| 5077455 | Easy open microwave susceptor sleeve for pizza and the like An improved sleeve receptacle for microwave browning and crisping of a generally flat food article, such as pizza, in a microwave oven is provided. The receptacle is constructed from a sheet of microwave susceptor stock which preferably includes an outwar... | 12/31/1991 |
| 5049710 | Microwave food carton having two integral layer-divider panels and blank therefor A microwave food carton having two integral layer-divider panels, and a one piece blank which may be erected to form the carton. Surface areas of the top and bottom walls of the carton, and the integral layer-divider panels, are each provided with a layer... | 09/17/1991 |
| 5045659 | Disposable microwave popcorn container A disposable container for heating seeds, kernels, nuts, grains, popcorn or the like items, using microwave radiation. The container comprises a can-shaped package having a floor where the items are placed and held in a clump. As the items are heated with... | 09/03/1991 |
| 5034234 | Microwave heating and serving package A food heating and serving package for elongated food products such as french fries and fish sticks is described which includes partitions formed from microwave energy absorbing material positioned in parallel relationship to define a honeycomb-like array... | 07/23/1991 |