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Class Information
Number: 5/261
Name: Beds > Bedsteads > Having bottom > Of springs > Elements > Restrainers and limiters
Description: Devices to prevent distortion of the springs, to prevent undue expansion after sudden load release, or to keep the springs under a degree of compression.










Patents under this class:

Patent Number Title Of Patent Date Issued
8438678 Bedding foundation having corner guards and multiple piece border May. 14, 2013
8020224 Internal corner structure for mattress foundations Sep. 20, 2011
7216380 Corner guard for box spring May. 15, 2007
6826791 Spring element for beds or chairs Dec. 7, 2004
6687929 Box spring corner guard Feb. 10, 2004
6493887 Box spring corner guard Dec. 17, 2002
6186483 Preloaded spring assembly Feb. 13, 2001
5924681 Preloaded spring assembly Jul. 20, 1999
5570874 Furniture spring assembly with elastic webbing Nov. 5, 1996
5499414 Innerspring construction including improved edge characteristics Mar. 19, 1996
5265291 Box spring corner support Nov. 30, 1993
5231709 Support deck for mattress or seat Aug. 3, 1993
5210890 Mattress foundation with springs and foam elements May. 18, 1993
5063625 Adjustable tensioning of a mattress Nov. 12, 1991
4856765 Spring apparatus Aug. 15, 1989
4724557 Bedding box spring assembly Feb. 16, 1988
4703527 Bedding springs and bedding units Nov. 3, 1987
4675927 Bedding units and springs therefor Jun. 30, 1987
4628555 Innerspring mattress Dec. 16, 1986
4620336 Body support for bed or seat Nov. 4, 1986
4559654 Bedding units and components for such units Dec. 24, 1985
4519107 Boxspring having coil compression stops May. 28, 1985
4139919 Internal support structure for a mattress Feb. 20, 1979
4114211 Corner stiffener Sep. 19, 1978
3981033 Mattress Sep. 21, 1976











 
 
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