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Class Information
Number: 297/445.1
Name: Chairs and seats > Bottom, back and leg (i.e., chair)
Description: Device comprising a supporting surface for receiving the buttocks or posterior of an occupant combined with a surface for engaging and supporting the back of an occupant and having means for spacing and supporting said surfaces relative to the ground or floor.










Sub-classes under this class:

Class Number Class Name Patents
297/446.1 Back or back standard integral with leg 46
297/450.1 Back or bottom connected at lateral side to end support 36
297/451.1 Back standard secured below or to underside of bottom 23
297/448.1 Front leg integral with rear leg 43
297/449.1 Interbraced bottom, back and leg 13
297/451.8 Modular component 28
297/451.11 Plastic material 20
297/451.7 Resilient bottom and leg 19
297/451.4 Single non-moving support leg 20
297/451.2 Three support legs only 9
297/451.3 Two support legs only 30
297/451.9 Woven material (e.g., cane or basket chair) 17


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8590126 Method of manufacturing a composite leg structure for a lightweight aircraft seat assembly Nov. 26, 2013
8303041 Furniture base with central collector Nov. 6, 2012
8087729 Aircraft seat Jan. 3, 2012
7931340 Tetraframe component of furniture Apr. 26, 2011
7740322 School bus seat with energy absorber Jun. 22, 2010
7708349 Knock down chair May. 4, 2010
7647714 Load bearing fabric attachment and associated method Jan. 19, 2010
7591511 Tamper resistant attachment device for a chair backrest Sep. 22, 2009
7540568 Three-dimensional unfilled furniture Jun. 2, 2009
7404607 Easy assembly barstool Jul. 29, 2008
7395590 Method for assembling a frame assembly for a chair Jul. 8, 2008
7275788 Music posture chairs Oct. 2, 2007
6997513 Chair for healthy sitting Feb. 14, 2006
6921135 Child's adjustable chair Jul. 26, 2005
6868640 Structures composed of compression and tensile members Mar. 22, 2005
6805412 Stackable chair with flexible back Oct. 19, 2004
6755466 Hunter's chair Jun. 29, 2004
6740015 Torso exercise methods and machines May. 25, 2004
6467848 Chair having a reinforced attaching mechanism Oct. 22, 2002
6450575 Detachable stacking chairs Sep. 17, 2002
6371555 Lounge chair backrest with a three dimensional design Apr. 16, 2002
6220995 Exerciser Apr. 24, 2001
6199999 Lighting system for theater seating Mar. 13, 2001
6142572 Buddy tractor seat and mounting Nov. 7, 2000
6139110 Reinforced cantilever bench Oct. 31, 2000
5979976 Foldable support structure Nov. 9, 1999
5976664 Curved molding, in particular for furniture Nov. 2, 1999
5845969 Rolling beach lounge chair Dec. 8, 1998
5702158 Arrangement in structural elements, for example for use in furniture Dec. 30, 1997
5671975 Seating system with horizontal bar having seat portions connected thereto Sep. 30, 1997
5649743 Vandal-resistant bench and frame therefor Jul. 22, 1997
5564787 Chair frame and associated chair framing material Oct. 15, 1996
5501419 Chair leg assembly with three legs Mar. 26, 1996
5449220 Selectable height folding chair apparatus Sep. 12, 1995
5382080 Chair Jan. 17, 1995
5338094 Flexible reclining chair Aug. 16, 1994
5267776 Modular chair Dec. 7, 1993
5141285 Relaxation chair Aug. 25, 1992
5137332 Seating system with positionable supports and auxiliary device Aug. 11, 1992
5104192 Structure for chairs, small armchairs and the like with means for completion in diversifiable versions Apr. 14, 1992
4898426 Passenger seat for an airplane Feb. 6, 1990
4869551 Modular seat for recreational boats Sep. 26, 1989
4861103 Structure forming a mounting for a seat of an air transport craft Aug. 29, 1989
4807936 Lounge chair rib cushion Feb. 28, 1989
4799735 Chair or armchair Jan. 24, 1989
4552406 Chair Nov. 12, 1985
4552404 Neutral body posture chair Nov. 12, 1985
4545615 Furniture construction with replaceable elastomeric covering Oct. 8, 1985
4426114 Unitary supporting and seat frame for rigid seat Jan. 17, 1984
4408802 Adjustable vehicle seat Oct. 11, 1983

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