| Patents for A47C 23 - Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases (4,038) |
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| 09/03/1981 | WO1981002384A1 Mattress |
| 08/25/1981 | US4285080 Spring deck for seating structures |
| 08/18/1981 | US4283864 Cushioning material construction |
| 08/05/1981 | EP0033225A2 Resilient seating supports |
| 07/28/1981 | US4280548 Furniture such as chairs and couches |
| 07/22/1981 | EP0032266A1 Mattress assembly |
| 07/01/1981 | EP0031132A2 Bed frame with slatted support |
| 07/01/1981 | EP0031076A2 Strap, particularly tensioning strap for furniture |
| 06/23/1981 | CA1103820A1 Body supporting and spacing structure |
| 06/09/1981 | US4271547 Mattress and boxspring extender |
| 04/14/1981 | CA1099419A1 Box spring assembly with improved end stiffness |
| 03/03/1981 | US4253208 Box spring assembly with basic wire grid |
| 02/24/1981 | US4251892 Box spring assembly with arcuate bendable springs |
| 02/24/1981 | US4251891 Under mattresses for bed furniture |
| 01/20/1981 | CA1094235A1 Sleep unit |
| 01/13/1981 | US4244089 Method of constructing box springs or the like |
| 12/30/1980 | CA1092729A1 Foundation unit with cushioned cross rails |
| 12/30/1980 | CA1092616A1 Cushioning material construction |
| 12/16/1980 | US4238861 Box spring assembly with limited deflection formed wire springs |
| 12/02/1980 | US4236262 Support grid and spring unit for a box spring foundation unit |
| 11/26/1980 | EP0019085A2 Hydraulic mattress with integrated slatted spring structure |
| 11/11/1980 | CA1089572A1 Furniture springs assembly and method for manufacture thereof |
| 10/02/1980 | WO1980001981A1 Mattress |
| 10/02/1980 | WO1980001980A1 Bed |
| 09/17/1980 | EP0015331A1 Springing device for seating |
| 09/16/1980 | US4222137 Internal pressure adjustable bed |
| 09/16/1980 | US4222134 Under-mattress for beds or similar articles of furniture |
| 08/26/1980 | US4218791 Device for use as a bed or bedstead |
| 08/26/1980 | US4218790 Box spring assembly with improved stiffness characteristics |
| 08/12/1980 | CA1083731A1 Under-matress for beds or similar articles of furniture |
| 07/01/1980 | CA1080452A1 Method and apparatus for forming a row of spring coils from a continuous length of wire |
| 06/17/1980 | US4207634 Box spring assembly with end rail spring mounting units |
| 06/10/1980 | CA1079421A1 Formed wire box spring with wire grid unit |
| 06/03/1980 | US4205880 Body supporting and spacing structure |
| 05/27/1980 | US4204286 Spring support |
| 04/16/1980 | EP0009905A1 A base for a bed |
| 04/01/1980 | US4195376 Box spring assembly with improved end stiffness |
| 03/04/1980 | US4190914 Sleep unit |
| 03/04/1980 | CA1072704A1 Bed device |
| 02/19/1980 | US4189523 Sheet metal fastener assembly and method of forming the same |
| 01/15/1980 | CA1070033A1 Spring construction |
| 01/09/1980 | EP0006840A1 Flexible elastic support |
| 01/08/1980 | US4181991 Mattress foundation |
| 01/01/1980 | CA1069225A Mattress-supporting bunk assembly for trucks |
| 12/18/1979 | CA1068418A1 Low profile box spring assembly |
| 12/04/1979 | CA1067625A1 Cushion support element |
| 11/27/1979 | CA1067217A1 Bed spring unit and method |
| 11/14/1979 | EP0005272A1 Orthopedic mattress |
| 10/30/1979 | US4172589 Cushion support element |
| 10/02/1979 | CA1063736A1 Box spring assembly and small diameter single cone coil spring for use in that assembly |
| 08/14/1979 | CA1060588A1 Wire spring assembly and components |
| 08/07/1979 | US4163296 Mattress foundation employing springs and cooperating foam bodies |
| 07/24/1979 | CA1059244A1 Mattress foundation |
| 07/17/1979 | US4161046 Coil spring assembly |
| 07/10/1979 | US4160544 Small diameter, single cone coil spring for use in a box spring assembly |
| 06/26/1979 | US4158899 Seat |
| 06/19/1979 | CA1056962A1 Mattress foundation |
| 05/22/1979 | US4155130 Means for restraining cross helical spin-out |
| 04/17/1979 | CA1052915A1 Box spring assembly |
| 04/03/1979 | US4147336 Seat frame for a vehicle |
| 03/21/1979 | EP0001055A1 Method and apparatus for forming a row of spring coils from a continuous length of wire |
| 03/20/1979 | CA1051129A1 Modular box spring assembly |
| 02/20/1979 | US4139919 Internal support structure for a mattress |
| 01/30/1979 | US4136411 Furniture frame |
| 01/30/1979 | US4136410 Spring deck for seating structures |
| 01/09/1979 | CA1046171A1 Woven spring unit |
| 01/09/1979 | CA1046170A1 Foundation unit frame |
| 01/02/1979 | US4131961 Formed wire box spring with wire grid unit |
| 01/02/1979 | CA1045728A1 Mattress or cushion spring assembly |
| 12/19/1978 | US4129908 Foundation unit with cushioned cross rails |
| 10/31/1978 | US4122566 Foundation unit having a posturized inner border |
| 10/24/1978 | US4121309 Furniture spring support |
| 10/24/1978 | CA1041230A2 Spring attachment assemblies |
| 10/24/1978 | CA1041229A2 Spring attachment assemblies |
| 10/17/1978 | US4120059 Furniture spring assembly and method for manufacture thereof |
| 10/17/1978 | US4120058 Low profile box spring assembly |
| 10/17/1978 | CA1040754A1 Box spring assembly |
| 10/17/1978 | CA1040753A1 Coil spring assembly |
| 10/03/1978 | CA1039861A1 Box spring assembly |
| 09/19/1978 | US4114212 Bed spring unit and method |
| 09/19/1978 | CA1038975A1 Mattress foundation |
| 09/12/1978 | US4112726 Method and apparatus for forming a row of spring coils from a continuous length of wire |
| 09/12/1978 | US4112529 Foundation unit for bedding |
| 09/12/1978 | US4112528 Box spring assembly and small diameter single cone coil spring for use in that assembly |
| 09/05/1978 | US4112163 Net for forming an elastic support in furniture |
| 08/22/1978 | CA1037165A1 Body supporting furniture frame |
| 08/22/1978 | CA1037164A1 Seat spring member |
| 08/15/1978 | US4106140 Body supporting furniture frame |
| 08/15/1978 | US4106139 Mattress foundation |
| 07/25/1978 | US4102032 Method of fabricating furniture spring support |
| 07/25/1978 | US4101993 Wire spring assembly and components |
| 07/18/1978 | US4100631 Box-spring assembly |
| 06/20/1978 | US4095298 Bed assembly |
| 04/11/1978 | US4083069 Reversible dual purpose box spring |
| 04/04/1978 | US4082256 Seat assembly |
| 02/21/1978 | US4074372 Foundation unit frame |
| 01/24/1978 | US4069525 Firm foundation unit for mattresses |
| 01/17/1978 | US4068331 Box spring grid and method of manufacture |
| 01/17/1978 | US4068330 Woven spring unit |
| 01/17/1978 | US4068329 Modular box spring assembly |