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Class Information
Number: 5/269
Name: Beds > Bedsteads > Having bottom > Of springs > Elements > Top connections > Helical connectors
Description: Devices helical springs used as the top connections and also as rim strips.

Patents under this class:

Patent Number Title Of Patent Date Issued
8590082 Mattress core Nov. 26, 2013
7921561 Bedding or seating product made with coil springs having unknotted end turns with bumps Apr. 12, 2011
7578016 One-sided innerspring assembly Aug. 25, 2009
7404223 Innerspring coils and innersprings with non-helical segments Jul. 29, 2008
7386897 Bedding or seating product made with coil springs having unknotted end turns Jun. 17, 2008
6571413 Spring mattress Jun. 3, 2003
5713088 Innerspring construction with springs having free terminal convolutions Feb. 3, 1998
5669087 Lacing wire zoned mattress Sep. 23, 1997
5649332 Posturized continuous mattress spring core Jul. 22, 1997
5584083 Mattress spring core Dec. 17, 1996
5535460 Spring assembly for seating and bedding Jul. 16, 1996
5474283 Spring assembly for seating and bedding Dec. 12, 1995
5431376 Spring assembly for seating and bedding Jul. 11, 1995
5184809 Spring assembly for seating and bedding Feb. 9, 1993
4942636 Spring bedding product Jul. 24, 1990
4781360 Spring assembly with helical coils of spring wire with unknotted ends Nov. 1, 1988
4771494 Offset continuous row coil spring assembly Sep. 20, 1988
4609186 Mattress spring core with open ended coils Sep. 2, 1986
4535978 Coil spring and spring assembly Aug. 20, 1985
4510635 Box spring assemblies Apr. 16, 1985
4488712 Longitudinally laced continuous coil spring assembly Dec. 18, 1984
4295639 Coil spring assembly and forming method Oct. 20, 1981
4155130 Means for restraining cross helical spin-out May. 22, 1979
4109330 Innerspring construction Aug. 29, 1978
4095297 Coil spring assembly Jun. 20, 1978

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