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Class Information
Number: 5/721
Name: Beds > Mattress (for whole body) > Having innerspring-type core > With substantial, firm, top insulator or reinforcing grid on spring core
Description: Innerspring-type core mattress including (a) a relatively hard separator between the coiled wire member core and the pad ticking to prevent the coiled wire members within the core from penetrating the surface or (b) including a hard element such as a wire grid or rigid board to provide reinforcement for at least a portion of the top supporting surface spaced from the periphery of the pad.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8590082 Mattress core Nov. 26, 2013
7886385 Mattress with quilted zoned topper Feb. 15, 2011
7841032 Bed mattress using permeable reinforcing member and foaming material, and method of manufacturing the same Nov. 30, 2010
7748066 Mattress center ridge compensator Jul. 6, 2010
7721367 Bed mattress using permeable reinforcing member and foaming material, and method of manufacturing the same May. 25, 2010
7631381 Mattress having foam encasement and method of making the same Dec. 15, 2009
7574762 Multilayered mattress component Aug. 18, 2009
7293311 Method of making a multilayered mattress component Nov. 13, 2007
7185379 Foam encased innerspring with internal foam components (triple case) Mar. 6, 2007
7181796 Mattress structure with an improved lumbar zone Feb. 27, 2007
7117655 Method of applying at least one web of insulator material to multiple spring assemblies Oct. 10, 2006
7082635 Unitized thermoplastic foam structures Aug. 1, 2006
7013515 Body impression-resistant mattress assembly Mar. 21, 2006
6996866 Mattress structure with an improved lumbar zone Feb. 14, 2006
6983503 Apparatus for packing free terminal convolutions of spring assembly used in mattress Jan. 10, 2006
6964074 Anti-microbial/-allergenic mattress and process of forming thereof Nov. 15, 2005
6895620 High comfort mattresses and methods for constructing them May. 24, 2005
6829798 Low density pocketed spring assembly and method of manufacture Dec. 14, 2004
6739672 Spring-edge furniture construction May. 25, 2004
6721982 Quilt-stitched internal mattress pillows Apr. 20, 2004
6701557 Single piece foam toppers with perimeter areas having variable support and firmness properties Mar. 9, 2004
6692080 Spring-edge furniture construction Feb. 17, 2004
6308354 Upholstery pad with steel reinforced support Oct. 30, 2001
6292965 Mattress Sep. 25, 2001
6272704 Portable diaper changing board Aug. 14, 2001
6256820 Multilayered pocketed bedding or seating product Jul. 10, 2001
6202238 Bedding or seating product with edge support Mar. 20, 2001
6065168 Independent suspension mattress May. 23, 2000
6023803 Mattress with high ILD firm topper Feb. 15, 2000
5974609 Quilt top mattress with convoluted foam cushion Nov. 2, 1999
5768726 Mattress spring core assembly cover Jun. 23, 1998
5704085 Edge support for a mattress Jan. 6, 1998
5644811 Mattress having access to materials sandwiched between mattress cover and inner cushioning assembly Jul. 8, 1997
5596777 Mattress with bent rattan springs Jan. 28, 1997
5579549 Mattress construction with selected zones of relative firmness and method Dec. 3, 1996
5523144 Bedding structure with quilted-in lumbar support Jun. 4, 1996
5469590 Mattress with compressible support members Nov. 28, 1995
5435026 Mattress clip and mattress Jul. 25, 1995
5432964 Field serviceable mattress and method for manufacture Jul. 18, 1995
5325553 Mattress spring structure with reinforcing frame in the lumbar area Jul. 5, 1994
5311624 Mattress having 2-ply moisture barrier and replaceable upholstery May. 17, 1994
5231718 Combined cellular material and innerspring support system Aug. 3, 1993
5184802 Wire grid for box spring bedding assembly Feb. 9, 1993
5027459 Auxiliary frame and grid and interaction with mattress periphery Jul. 2, 1991
4788731 Mattress Dec. 6, 1988
4771495 Bedding spring mattress Sep. 20, 1988
4476595 Mattress for use on a bed and settee Oct. 16, 1984
4463466 Mattress construction and method Aug. 7, 1984
4432109 Plastic support platform for mattress structure Feb. 21, 1984
4414696 Mattress with non-woven fabric covered springs Nov. 15, 1983

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