Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 5/250
Name: Beds > Bedsteads > Having bottom > Of springs > Spiral springs only > Frames, sectional and collapsible > Folding
Description: Devices hinged together for folding flat upon each other.










Patents under this class:

Patent Number Title Of Patent Date Issued
8407834 Sturdy, collapsible, folding mattress support having the appearance of a box spring Apr. 2, 2013
8370973 Collapsible, folding mattress support having the appearance of a box spring with legs Feb. 12, 2013
8312576 Sturdy, collapsible, folding mattress support having the appearance of a box spring Nov. 20, 2012
7503086 Foldable bedding foundation with sliders Mar. 17, 2009
7376989 Foldable bedding foundation May. 27, 2008
6012190 Foldable bed with collapsible sinuous springs Jan. 11, 2000
5507047 Composite mattress assembly Apr. 16, 1996
5257424 Foldable bed Nov. 2, 1993
4899404 Elevation system for a bed assembly Feb. 13, 1990
4811932 Coil spring mattress core Mar. 14, 1989
4790519 Borderwire hinge clip Dec. 13, 1988
4771995 Collapsible box spring Sep. 20, 1988
4770397 Spring wire element for foundation unit Sep. 13, 1988
4654905 Body support for bed or seat Apr. 7, 1987
4620336 Body support for bed or seat Nov. 4, 1986
4541133 Sofa bed Sep. 17, 1985
4523342 Folding bed frame structure for sofa beds or the like Jun. 18, 1985
4489450 Body support for bed or seat Dec. 25, 1984
4377279 Steel wire foundation Mar. 22, 1983











 
 
  Recently Added Patents
Blueberry plant named `DrisBlueFour`
Methods for predicting cardiac toxicity
2,5-disubstituted piperidine orexin receptor antagonists
Technology for managing traffic via dual homed connections in communication networks
Gas sensor with a porous layer that detectably affects a surface lattice resonant condition of a nanoparticle array
Business card assembly
Devices, systems, and methods for tactile feedback and input
  Randomly Featured Patents
Billet manipulator
Compactor wheel with cross-shaped tips
Purification of caprolactam
Control element
Palladium bonding wire for semiconductor device
Auto-stop air pump
Method and apparatus to recycle a road sign
Vacuum cleaner
Television receiver
Process for separating and recovering unreacted materials in urea synthesis