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Class Information
Number: 5/21
Name: Beds > Sofa bed > Extension > Slidable section > Change of level
Description: Devices in which a section parallel to the seat slides out, and then the level of one or the other is substantially changed without overturn to make the two sections practically coplanar.

Patents under this class:

Patent Number Title Of Patent Date Issued
7917975 Controlled motion bed-frame positioning assembly Apr. 5, 2011
7509696 System, method, and apparatus for a retractable and concealable support for an item of furniture Mar. 31, 2009
6588837 Chair with pull out sleep surface Jul. 8, 2003
6463603 Convertible wall bed/seat Oct. 15, 2002
6397411 Divan bed with movable frame having means for resting on the ground which can be extracted/retracted by means of rotational operation Jun. 4, 2002
5231710 Convertible sofa-bed Aug. 3, 1993
5195193 Sofa with traversable seat support frame for conversion to a single bed Mar. 23, 1993
5038422 Support structure for sofa beds, with pull-out, raisable auxiliary bed Aug. 13, 1991
4860393 Convertible chair for either sitting or lying Aug. 29, 1989
4672696 Convertible sitting/reclining furniture article Jun. 16, 1987

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