Chair base

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

FIG. 1 is a perspective view of the chair base;

FIG. 2 is a side elevational view;

FIG. 3 is another side elevational view;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view.

Patent	Priority	Assignee	Title
10455939,	Oct 19 2017		One piece injection-molded stackable rocking chair
D458060,	Apr 27 2001	LEGGETT & PLATT CANADA CO	Chair base
D461345,	Sep 26 2001	VIRCO MFG CORPORATION	Chair base
D467452,	Jan 25 2002	U-CHIN FURNITURE CO , LTD	Chair leg
D471039,	Feb 07 2002		Chair base
D482549,	Jan 16 2003		Office chair base
D489551,	Oct 31 2002	HNI TECHNOLOGIES INC	Office table
D494387,	Oct 24 2003	Gruga, U.S.A.	Chair base
D494785,	Sep 03 2003		Chair base
D494786,	Oct 15 2003		Base stand for a seat
D507436,	Jan 02 2003	Hsin Chernq Enterprise Co., Ltd.	Chair base
D544732,	Jul 05 2006	LIVING STYLE B V I LTD	Chair base
D544733,	Jul 05 2006	True Seating Concepts, LLC	Chair base
D552385,	Oct 10 2006		Office chair base
D653480,	Jul 27 2010		Leg swivel of a swivel chair
D665603,	Dec 21 2009		Office chair base

Patent	Priority	Assignee	Title
4471995,	Jun 22 1981	Haworth, Inc.	Mounting arrangement for cantilevered chair arm
5857739,	Jun 10 1996	NEPSCO, INC	Chair
D312013,	Jun 10 1987	GUNLOCKE COMPANY, THE	Chair base
D335398,	Apr 20 1990	STEELCASE STRAFOR, A FRENCH JOINT STOCK CORP	Armchair
D343740,	Jun 11 1991		Chair
D353718,	May 06 1991	HNI TECHNOLOGIES INC	Swivel chair
D360550,	May 29 1990	C A FORD PTY LTD	Furniture support base
D366377,	Mar 17 1994	LEGGETT & PLATT CANADA CO SOCIETE LEGGETT & PLATT CANADA	Base for an office chair
D395962,	May 20 1996	BRADO S R L	Swivel office chair, especially for office use
D401075,	Jun 10 1996	BFI BUSINESS FINANCE	Reclining chair
D405968,	Jan 15 1998	Global Total Office	Chair
D414629,	Feb 10 1998	LEGGETT & PLATT CANADA CO SOCIETE LEGGETT & PLATT CANADA	Chair base
D416406,	May 18 1998	DONATI, S P A , A CORPORATION OF ITALY	Base for office chair
D417100,	Dec 14 1998		Chair leg

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