William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7172079 | Magnet rack that can be easily removed from a magnetically attractive surface A magnetic rack includes a hollow rack body confining a magnet compartment, a magnet unit received in the magnet compartment, and a release component mounted pivotally on an end portion of the rack body. The release component is pivotable relative to the end portion... | 02/06/2007 |
| 6915917 | Heat insulating container and its manufacturing method A heat insulating container and its manufacturing method is provided. The heat insulating container comprises an inner container and an outer glass container, in which the breakage of the glass containers can be prevented even if a minute flaw is formed on either of... | 07/12/2005 |
| 6268037 | Heat shield for blow-molded component The present invention relates to a method for making a shielded automobile component and the shielded automobile component itself. The component includes a composite formed of a metal sheet which includes protrusions which extend from a surface of the met... | 07/31/2001 |
| 6179155 | Insulated vessel and method of production therefor The present invention relates to an insulated vessel which may be produced at low cost, has superior insulating capabilities and excellent volumetric efficiency, and which may be suitably employed in a thermos, cooler, icebox, insulated cup, thermal insul... | 01/30/2001 |
| 6003719 | Cooling container that includes a radiant heat barrier A cooler assembly for keeping beverages, food, medical supplies, drugs and other heat sensitive products at lower than ambient temperatures. Container includes a radiant heat barrier and air space between an inner and outer shell of a cooler assembly so a... | 12/21/1999 |
| 4949867 | Air conditioning device for a control panel This invention relates to an air conditioning device, particularly for a control panel, having a box-like lower housing part and a box-like cover which can be connected therewith. The air conditioning device can be installed on or in a mounting wall in ac... | 08/21/1990 |
| 4905865 | Aperture structure in a heat insulation container A heat insulation container includes an inner casing, an outer casing on the exterior thereof and enclosing the inner casing and defining a space therebetween in cooperation with the inner casing, and a heat insulating foamed material filling the space de... | 03/06/1990 |
| 4896785 | Combination chest freezer and glass cover A glass cover or lid for a chest freezer of the kind in which the goods contained therein are intended to be viewed through the glass cover and which chest is constructed so that a substantially stationary cushion of air can be generated immediately benea... | 01/30/1990 |
| 4860921 | Thermal breaker strip for refrigeration cabinets An apparatus and system is disclosed for fabricating refrigeration cabinets of the type including an outer shell and inner shell separated by an insulating medium, such as polyurethane foam. The inner and outer shells are each formed of a plurality of pla... | 08/29/1989 |
| 4826040 | Refrigeration cabinet construction A refrigerated appliance cabinet for a chest-type freezer is formed from prefinished materials. The side walls of the shell and the liner are formed as a single piece, with the evaporator and condenser coils assembled before bending and after a thermal ma... | 05/02/1989 |