Mattress coverings and methods of making
Patent 6499157 Issued on December 31, 2002. Estimated Expiration Date: 
May 24, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 24, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 317562 filed on 05/24/1999US Classes:5/497, Contoured or fitted5/502MultilayerExaminersPrimary: Grosz, AlexanderAttorney, Agent or FirmForeign Patent References
International ClassesA47G 009/04A47G 009/02 AbstractA mattress covering in the form of a fitted mattress pad or fitted sheet has an inelastic, generally rectangular top portion and a skirt of inelastic material extending transversely, preferably perpendicularly from the outer periphery of the top portion in a closed loop entirely around the outer periphery of the top portion. A first elastic cord is secured to the skirt at its outer periphery remote from the top portion. A second, separate elastic cord is secured to the skirt at some place between and spaced apart from the top panel portion and the first elastic cord, preferably closer to the top portion outer periphery than to the first elastic cord. The skirt can be made of two layers of a textile material, each layer being a single panel, or it can be made of multiple panels or lengths of other materials for each layer. The two skirt layers are attached to each other and either or both elastic members can be attached to either or both of the inelastic fabric layers by surface bonding, particularly by ultrasonic spot welding. The top portion is dimensioned to fit a standard size mattress and the skirt is dimensioned to fit a range of mattress heights.Other References
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