Chair base

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Description

FIG. 1 is a perspective view of chair base according to the present invention;

FIG. 2 is a front view of a chair base according to the present invention;

FIG. 3 is a rear view of a chair base according to the present invention;

FIG. 4 is a left side elevation view of a chair base according to the present invention;

FIG. 5 is a right side elevation view of chair base according to the present invention;

FIG. 6 is a top view of a chair base according to the present invention; and,

FIG. 7 is a bottom view of a chair base according to the present invention.

The broken lines shown in the drawings depict portions of the chair base that form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
D350041 August 30, 1994 Schwarzli
D404598 January 26, 1999 Chen
D428454 July 18, 2000 Fischer
D456186 April 30, 2002 Liu
D471743 March 18, 2003 Chen
D481562 November 4, 2003 Shilling
D495536 September 7, 2004 Lucht
D562585 February 26, 2008 Gillingham
D625118 October 12, 2010 Gillingham
D660540 May 22, 2012 Thompson
8844947 September 30, 2014 Whiteside
D729530 May 19, 2015 Robins
D729561 May 19, 2015 Robins
D767927 October 4, 2016 Mahan-Rudolph
D771961 November 22, 2016 Mahan-Rudolph
D793755 August 8, 2017 Xingchang
20110187164 August 4, 2011 Corcorran
Other references
  • Swivel Chair Base Metal Chair Base OfficeChairsUSA. [online] Published on Feb. 20, 2015. Retrieved Apr. 3, 2018 from URL: https://officechairsusa.com/back-app-2-0-sit-stand-chair-base-only/?gclid=Cj0KCQjwzlzWBRDnARIsAAkc8hF-db6Tn4Ho6qNDFLpPkWyti90FntkRG-sJomKZ_51-Ais6eOUapeEaApuiEALw_wcB#sthash.FmoBf7w3.dpbs.
Patent History
Patent number: D832632
Type: Grant
Filed: Apr 4, 2017
Date of Patent: Nov 6, 2018
Inventor: Yang Xingchang (Foshan)
Primary Examiner: Vy N Koenig
Application Number: 29/599,482
Classifications
Current U.S. Class: D6/708