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					| Patent    D610822 |  
					| Priority Jan 21 2009 |  
					| Filed Jan 21 2009 |  
					| Issued Mar 02 2010 |  
					| Expiry Mar 02 2024 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 41 |  
					 | 21 |  
					 | 
						  n/a |  
						 
    |  |  | 
			  
			  The ornamental design for an office chair, as shown. | 
 
	
FIG. 1 is a perspective view of a office chair showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
	
	Chen, Yung-Hua
	
	
	  
 	  	 | Patent | Priority | Assignee | Title | 
	      
	 | D634558, | Jul 02 2010 |  | Chair | 
    
	 | D638635, | Oct 16 2008 | ITOKI CORPORATION | Chair | 
    
	 | D641572, | Feb 01 2010 | FUH Shyan Co., Ltd. | Chair back frame | 
    
	 | D646092, | Jun 09 2010 | Office Master | Office chair | 
    
	 | D648947, | Jun 17 2010 | MERRYFAIR CHAIR SYSTEM SDN  BDN | Chair | 
    
	 | D650617, | Mar 19 2010 |  | Main frame of chairs | 
    
	 | D652647, | Mar 17 2010 | DAUPHIN ENTWICKLUNGS-U  BETEILIGUNGS-GMBH | Chair | 
    
	 | D653044, | Sep 18 2009 | DAUPHIN ENTWICKLUNGS-U  BETEILIGUNGS-GMBH | Chair | 
    
	 | D653045, | Mar 17 2010 | DAUPHIN ENTWICKLUNGS-U  BETEILIGUNGS-GMBH | Chair | 
    
	 | D653467, | Oct 25 2010 | Dauphin Entwicklungs-u. Beteiligungs-GmbH | Chair | 
    
	 | D654709, | Oct 09 2008 | Okamura Corporation | Chair | 
    
	 | D654710, | Oct 09 2008 | Okamura Corporation | Chair | 
    
	 | D654711, | Oct 09 2008 | Okamura Corporation | Chair | 
    
	 | D656329, | Aug 19 2009 | ITOKI CORPORATION | Chair | 
    
	 | D659421, | Mar 01 2011 | ZHEJIANG DEMURE FURNITURE CO , LTD , | Chair | 
    
	 | D661506, | Jan 21 2011 |  | Chair | 
    
	 | D661523, | Dec 07 2010 |  | Chair headrest | 
    
	 | D661916, | Jan 18 2011 |  | Office chair | 
    
	 | D665590, | Mar 23 2011 | Topstar GmbH | Chair | 
    
	 | D683151, | Sep 20 2012 | Steelcase Inc | Chair | 
    
	 | D689313, | Sep 20 2012 | Steelcase Inc. | Chair | 
    
	 | D689319, | Sep 20 2012 | Steelcase Inc. | Chair | 
    
	 | D690146, | Sep 20 2012 | Steelcase Inc. | Chair | 
    
	 | D690523, | Nov 06 2009 | PATRA CO , LTD | Office chair | 
    
	 | D690547, | Sep 20 2012 | Steelcase Inc. | Chair | 
    
	 | D695538, | Apr 16 2013 | KUSCH+CO GMBH | Seating furniture | 
    
	 | D697330, | May 10 2013 |  | Seat | 
    
	 | D697730, | Sep 20 2012 | Steelcase Inc | Chair | 
    
	 | D698165, | Sep 20 2012 | Steelcase Inc | Chair | 
    
	 | D699958, | Sep 20 2012 | Steelcase Inc | Chair | 
    
	 | D706047, | Oct 17 2012 | Okamura Corporation | Chair | 
    
	 | D718544, | Mar 17 2014 | Chueng Shine Co., Ltd. | Chair | 
    
	 | D758774, | Apr 24 2015 | Steelcase Inc. | Headrest assembly | 
    
	 | D759415, | Apr 24 2015 | Steelcase Inc. | Headrest | 
    
	 | D760526, | Apr 24 2015 | Steelcase Inc. | Headrest assembly | 
    
	 | D781604, | Apr 24 2015 | Steelcase Inc. | Chair | 
    
	 | D781605, | Apr 24 2015 | Steelcase Inc. | Chair | 
    
	 | D935253, | Jul 14 2020 | Henglin Home Furnishings Co., Ltd. | Chair | 
    
	 | D935822, | Jul 07 2020 | Henglin Home Furnishings Co., Ltd. | Chair | 
    
	 | D970276, | Jul 07 2022 |  | Office chair | 
    
	 | D979966, | Jan 08 2021 | INTER IKEA SYSTEMS B.V. | Office chair | 
	
	
	
	  
 	  	 | Patent | Priority | Assignee | Title | 
	      
	 | D436260, | Nov 08 1999 | Okamura Corporation | Chair | 
    
	 | D436456, | Apr 12 2000 | Allseating Corporation | Chair | 
    
	 | D481879, | Nov 15 2002 |  | Chair | 
    
	 | D486656, | Mar 13 2003 |  | Chair | 
    
	 | D489542, | Sep 09 2002 | Okamura Corporation | Chair | 
    
	 | D499564, | Oct 22 2002 | Vitra AG | Chair | 
    
	 | D507124, | Jul 13 2004 |  | Chair | 
    
	 | D512232, | Jan 21 2005 | MAXIFREE INTERNATIONAL CO , LTD | Office chair | 
    
	 | D543717, | Dec 01 2006 |  | Office chair | 
    
	 | D548994, | Jan 23 2007 |  | Chair | 
    
	 | D549473, | May 07 2004 | Topstar GmbH | Chair | 
    
	 | D552857, | Mar 08 2007 |  | Chair | 
    
	 | D557024, | Apr 23 2007 |  | Office chair | 
    
	 | D557025, | Apr 23 2007 |  | Office chair | 
    
	 | D557914, | Sep 15 2004 | MERRYFAIR CHAIR SYSTEM SDN  BHD | Chair | 
    
	 | D568624, | Oct 03 2007 | Hurng Taih Plastic Master Batch Co., Ltd. | Office chair | 
    
	 | D571569, | Oct 09 2006 | Stoll Giroflex AG | Chair | 
    
	 | D572493, | Sep 27 2007 |  | Office chair | 
    
	 | D573361, | Jan 25 2008 | Kuo Chin Furniture Decoration Co., Ltd. | Office chair | 
    
	 | D576416, | Jan 02 2008 |  | Chair | 
    
	 | D585205, | Mar 27 2008 | Hurng Taih Plastic Master Batch Co., Ltd. | Frame of the office chair | 
	
	
	
	  
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