Seat base

The ornamental design for a seat base, as shown and described.

FIG. 1 is a perspective view of a seat base showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side view thereof; and,

FIG. 6 is another perspective view shown with environmental structure.

The broken lines showing of a seat and wheels in FIG. 6 are for illustrative purposes only and form no part of the claimed design.

Patent	Priority	Assignee	Title
D583594,	Jun 02 2008	True Seating Concepts, LLC	Chair base
D584907,	Jul 03 2007	True Seating Concepts, LLC	Chair base
D586159,	Aug 08 2007	Jia Xie Enterprise Co., Ltd.	Chair leg
D612639,	Jan 28 2009	F. Smit Holding B.V.	Under-carriage for a playseat
D653480,	Jul 27 2010		Leg swivel of a swivel chair
D665603,	Dec 21 2009		Office chair base
D805334,	May 13 2015	Okamura Corporation	Table
D805335,	May 13 2015	Okamura Corporation	Table
D918633,	May 07 2019	DONATI S P A	Base for office chairs
ER8343,

Patent	Priority	Assignee	Title
D274769,	Sep 17 1980	Olivetti Synthesis, S.p.A.	Chair
D306531,	Nov 04 1986		Chair
D321299,	Aug 22 1988	SHEPHERD CASTER CORPORATION	Chair base
D405618,	Dec 23 1996	Kimball International, Inc.	Chair
D405970,	May 29 1998	Global Total Office	Chair
D411692,	Oct 22 1996	HNI TECHNOLOGIES INC	Chair
D414950,	Mar 05 1998	HNI TECHNOLOGIES INC	Chair
D414951,	Dec 24 1998	NIGHTINGALE CORP	Chair
D417100,	Dec 14 1998		Chair leg
D437702,	Nov 23 1999	HNI TECHNOLOGIES INC	Chair
D448583,	Oct 03 2000		Office chair
D475859,	May 01 2001	Tinby A/S	Chair
D494786,	Oct 15 2003		Base stand for a seat

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Feb 01 2007		John, Kaloustian	(assignment on the face of the patent)

n/a

Date	Maintenance Fee Events

n/a

Date	Maintenance Schedule