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Class Information
Number: 5/12.1
Name: Beds > Sofa bed
Description: That subject matter which by relative movement of its parts may be converted from a seat to a bed.










Sub-classes under this class:

Class Number Class Name Patents
5/51.1 Bed element 14
5/14 Beds stowed under seat 15
5/50 Drop leaf only 0
5/49 Drop or standing leaf 2
5/17 Extension 23
5/43 Forward-turning back 24
5/12.2 Knockdown sofa bed 17
5/13 Link supported unfolding 111
5/27 Pivoted seat over forward invertible section 2
5/37.1 Reverting back 126
5/24 Rotary seats 2
5/47 Sliding and pivoting back 81
5/15 Suspended bottoms 0
5/28 Unfolding seat 33
5/16 Vertical unfolding sections 6


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8656527 Multifunctional furniture Feb. 25, 2014
8635727 Variable-size bed Jan. 28, 2014
8448314 Sofa sleeper installation and system May. 28, 2013
8429770 Convertible sofa with contained air mattress Apr. 30, 2013
8375483 Daybeds and methods for converting daybeds Feb. 19, 2013
8375482 Foldable mattress with removable pillow top Feb. 19, 2013
8332973 Bed to a sofa conversion frame Dec. 18, 2012
8201290 Convertible sofa with contained air mattress Jun. 19, 2012
8091159 Mechanism and mattress for sofabed Jan. 10, 2012
7962975 Mechanism for mounting a foldable-bed unit in an article of furniture Jun. 21, 2011
7827629 Folding furniture structure convertible between a folded seating condition and an unfolded sleeping condition Nov. 9, 2010
7555797 Inflatable bed adapted for use with a sofa Jul. 7, 2009
7451504 Sofa sleeper with low-profile head rail Nov. 18, 2008
7444692 Multi-angle hook and L-shaped hinge Nov. 4, 2008
7360261 Sofa Apr. 22, 2008
7331074 Inflatable pad assembly Feb. 19, 2008
7269865 Sofa with flip-up spring deck Sep. 18, 2007
7246393 Inflatable mattress Jul. 24, 2007
7198325 Adjustable piece of seating furniture Apr. 3, 2007
7188379 Combination air and spring mattress for a sofa sleeper Mar. 13, 2007
7039968 Hinge assembly for folding dinette May. 9, 2006
6964134 Membrane deflation in combination with rigid surfaces Nov. 15, 2005
6857142 Sofa sleeper with integral air mattress and valve Feb. 22, 2005
6848127 Folding sofa bed Feb. 1, 2005
6826789 Sofa equipped with radiant heating mattress for fomentation and massage Dec. 7, 2004
6807693 Multi-angle hook Oct. 26, 2004
6742200 Bed sofa Jun. 1, 2004
6738998 Futon frame that assembles by means of sockets May. 25, 2004
6725473 Multi-angle hook and L-shaped hinge Apr. 27, 2004
6718570 Convertible couch bed Apr. 13, 2004
6665893 Sofa sleeper with integral air mattress and valve Dec. 23, 2003
6618883 Mattress support device for a sofa sleeper Sep. 16, 2003
6463602 Sofa bed comprising innovating mechanisms for position adjustment and quick assembly Oct. 15, 2002
6434766 Sofa and bed combination Aug. 20, 2002
6161231 Sleeper sofa with an air mattress Dec. 19, 2000
6108833 Bi-fold futon frame including force spreading mortise plates Aug. 29, 2000
6042186 Inflatable seating apparatus Mar. 28, 2000
5970537 Folding bed frame structure and method of fabricating same Oct. 26, 1999
5970538 Pantographic support control mechanism Oct. 26, 1999
5953778 Articulated mattress Sep. 21, 1999
5947559 Seating unit with movable seat Sep. 7, 1999
5903939 Raised frame support for sofa-sleeper May. 18, 1999
5893182 Combination item of furniture and foldable sleeper bed Apr. 13, 1999
5855030 Folding sofa bed frame structure with two-position TV headrest Jan. 5, 1999
5768724 Modular RV furniture and method Jun. 23, 1998
5740564 Sofa having reclining section and foldable bed Apr. 21, 1998
5657500 Spring mattress Aug. 19, 1997
5644804 Sofabed Jul. 8, 1997
5519904 Bed with slidable cover comprised of slats May. 28, 1996
5517706 Sofa-bed May. 21, 1996

1 2 3










 
 
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