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Class Information
Number: 5/42.1
Name: Beds > Sofa bed > Reverting back > Unfolding back section
Description: Device wherein the back is itself unfoldable or has further attached sections which are unfoldable.

Patents under this class:

Patent Number Title Of Patent Date Issued
8321971 Sleeper sofa Dec. 4, 2012
8225438 Seating unit convertible to bed Jul. 24, 2012
8201290 Convertible sofa with contained air mattress Jun. 19, 2012
7945974 Sleeper sofa May. 24, 2011
7383596 Folding mechanism for a futon sofa sleeper Jun. 10, 2008
5628076 Self locking futon frame May. 13, 1997
5519902 Convertible furniture frame with self-positioning and locking legs May. 28, 1996
5485638 Self locking futon frame Jan. 23, 1996
5345626 Futon frame Sep. 13, 1994
5327591 Three frame convertible futon sofa bed Jul. 12, 1994
5249317 Inverted-L mechanism for facilitating the folding of a convertible sofa-bed Oct. 5, 1993
5195194 Seat-bed extender Mar. 23, 1993
4939802 Sofa-bed Jul. 10, 1990
4803742 Convertible bed Feb. 14, 1989
4696069 Sofa bed Sep. 29, 1987
4660235 Convertible seat-bed with improved actuator for third panel Apr. 28, 1987
4637081 Fold-down seat construction Jan. 20, 1987
4628551 Convertible bed chair Dec. 16, 1986
4620335 Lower bed structure for a recreational vehicle Nov. 4, 1986
4601074 Furniture, particularly upholstered furniture, for transferring from a sitting position to a lying position Jul. 22, 1986
4543675 Vehicle seat-bed extender Oct. 1, 1985
4538308 Convertible furniture Sep. 3, 1985
4402096 Folding bed chair with detachable cushions Sep. 6, 1983
4343508 Latch mechanism for vehicle seat convertible to bed Aug. 10, 1982
3972562 Collapsible furniture Aug. 3, 1976

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