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						 Patent  
						   D913007  
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						 Priority  
						Feb 09 2018 
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						 Filed 
						Mar 08 2018  
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						 Issued 
						Mar 16 2021 
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						 Expiry 
						Mar 16 2036 
					   
 TERM.DISCL. 
					   						
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			  We claim the ornamental design for an office chair, as shown and described. 
			  
			 
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FIG. 1 is a front elevational view;
FIG. 2 is a rear elevational view;
FIG. 3 is a left elevational view;
FIG. 4 is a right elevational view;
FIG. 5 is a top plan view;
FIG. 6 is a bottom plan view;
FIG. 7 is a front perspective view and,
FIG. 8 is a rear perspective view.
The broken lines depict the boundary of an office chair and form no part of the claimed design.
	
	Shen, Guicheng, He, Donglang
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | D973382,  | 
	 Jan 15 2020 | 
	  | 
	 Chair | 
	 
    
	 | D975459,  | 
	 Jun 07 2019 | 
	  | 
	 Office chair | 
	 
    
	 | D979269,  | 
	 Sep 21 2022 | 
	  | 
	 Office chair | 
	 
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 8506008,  | 
	 Mar 30 2011 | 
	 Oasyschair Co., Ltd. | 
	 Foldable seat structure | 
	 
    
	 | D575542,  | 
	 Oct 20 2005 | 
	 Okamura Corporation | 
	 Chair | 
	 
    
	 | D664785,  | 
	 May 19 2011 | 
	 Allseating Corporation | 
	 Chair | 
	 
    
	 | D687642,  | 
	 Nov 30 2012 | 
	 Zhongshan Shi Songlin Furniture Co., Ltd; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD | 
	 Chair | 
	 
    
	 | D734621,  | 
	 Dec 25 2013 | 
	 DONGGUAN KENTEC OFFICE SEATING CO., LTD. | 
	 Wheeled chair | 
	 
    
	 | D735484,  | 
	 Feb 17 2014 | 
	 DONGGUAN BOYI FURNITURE LIMITED | 
	 Chair | 
	 
    
	 | D740044,  | 
	 Jun 06 2014 | 
	 HNI TECHNOLOGIES INC  | 
	 Chair | 
	 
    
	 | D758088,  | 
	 Sep 29 2014 | 
	 Okamura Corporation | 
	 Chair | 
	 
	
	
	
	  
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