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						 Patent  
						   D880885  
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						 Priority  
						Oct 31 2017 
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						 Filed 
						Oct 31 2017  
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						 Issued 
						Apr 14 2020 
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						 Expiry 
						Apr 14 2035 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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					    18 
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					    12 
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						  n/a 
					   
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			  The ornamental design for a swivel chair, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a front view of a swivel chair;
FIG. 2 is a back view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top front left perspective view thereof; and,
FIG. 7 is a right side view thereof.
The broken lines show portions of the swivel chair and form no part of the claimed design.
	
	Li, Yuehai
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | D905996,  | 
	 Jul 31 2019 | 
	  | 
	 Chair | 
	 
    
	 | D906710,  | 
	 Dec 05 2019 | 
	  | 
	 Chair | 
	 
    
	 | D906711,  | 
	 Dec 05 2019 | 
	  | 
	 Chair | 
	 
    
	 | D907384,  | 
	 Nov 02 2019 | 
	  | 
	 Chair | 
	 
    
	 | D916477,  | 
	 Jan 24 2019 | 
	  | 
	 Office chair | 
	 
    
	 | D935824,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Seat | 
	 
    
	 | D936984,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Chair | 
	 
    
	 | D936985,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Chair | 
	 
    
	 | D937024,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Backrest | 
	 
    
	 | D937595,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Chair | 
	 
    
	 | D951690,  | 
	 Feb 19 2020 | 
	 Steelcase Inc. | 
	 Chair | 
	 
    
	 | D951691,  | 
	 Feb 19 2020 | 
	 Steelcase Inc. | 
	 Chair | 
	 
    
	 | D961280,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Chair | 
	 
    
	 | D961281,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Chair | 
	 
    
	 | D961315,  | 
	 Feb 19 2020 | 
	 Steelcase Inc. | 
	 Chair | 
	 
    
	 | D961316,  | 
	 Feb 19 2020 | 
	 Steelcase Inc. | 
	 Chair | 
	 
    
	 | D961317,  | 
	 Feb 19 2020 | 
	 Steelcase Inc | 
	 Backrest | 
	 
    
	 | D988741,  | 
	 Dec 17 2019 | 
	 MUUTO | 
	 Chair | 
	 
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 227829,  | 
	  | 
	  | 
	  | 
	 
    
	 | D245886,  | 
	 Aug 15 1975 | 
	 Chromcraft Corporation | 
	 Chair | 
	 
    
	 | D304654,  | 
	 Jun 10 1988 | 
	 Chromcraft Furniture Corp. | 
	 Seat | 
	 
    
	 | D330810,  | 
	 Nov 26 1990 | 
	 Chromcraft Furniture Corporation | 
	 Chair | 
	 
    
	 | D408162,  | 
	 May 28 1998 | 
	 HNI TECHNOLOGIES INC  | 
	 Chair | 
	 
    
	 | D417966,  | 
	 Jan 15 1998 | 
	 Global Total Office | 
	 Chair | 
	 
    
	 | D439449,  | 
	 Dec 29 1999 | 
	 Global Total Office | 
	 Chair | 
	 
    
	 | D492494,  | 
	 Oct 23 2003 | 
	 Hsiu-Hsueh, Wu | 
	 Office chair | 
	 
    
	 | D758749,  | 
	 Oct 17 2014 | 
	 ARPER S P A  | 
	 Office chair | 
	 
    
	 | D758751,  | 
	 Oct 17 2014 | 
	 ARPER S P A  | 
	 Office chair | 
	 
    
	 | D764824,  | 
	 May 05 2015 | 
	 ITOKI CORPORATION | 
	 Chair | 
	 
    
	 | D794368,  | 
	 May 10 2016 | 
	 Michigan Tube Swagers & Fabricators, Inc. | 
	 Chair | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
	  n/a
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Schedule | 
	  
	  n/a