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						Patent
 
						   D770945
 
					 
				 
				
					
						Priority
 
						Feb 26 2014
					 
				 
				
					
						Filed
						Feb 26 2014
 
					 
				 
				
					
						Issued
						Nov 08 2016
					 
				 
				
					
						Expiry
						Nov 08 2030
					   
					   						
					 
				 
				
					
						
						
					 
				 
				
					
						Assg.orig
						
					 
				 
				
					
						
						
					 
				 
				
					
						Entity
						unknown
					 
				 
				
					 
						
					   7
					  
				 
				
					 
						
					   13
					  
				 
				
					 
						
					   
						  n/a
					   
					  
				 
				
						 
    
     
     
     
				
				
			
		   
		 
			
			  
			  The ornamental design for a wheelchair  back, as shown and described.
			  
			  
			  
			  
			 
		 
	 
 
	
FIG. 1  is a back and side perspective view of the wheelchair back of the new design;
FIG. 2  is a back elevational view of the wheelchair back of the new design; and,
FIG. 3  is a side elevational view, taken along line 3 -3  of FIG. 2 , of the wheelchair back of the new design.
The broken lines shown in the drawings illustrate the environment of the wheelchair back and form no part of the claimed design.
 
	
	DuFresne, Steven 
	
	
	
	
	  
 	  	 Patent 
	  	 Priority 
	  	 Assignee 
	  	 Title 
	   
	      
	 2638157 ,  
	  
	  
	  
	  
    
	 D368881 ,  
	 Mar 06 1993 
	  
	 Invalid chair 
	  
    
	 D430078 ,  
	 Dec 01 1998 
	 Ferno-Washington, Inc.; FERNO-WASHINGTON, INC   
	 Fabric chair with three stair climbing wheels 
	  
    
	 D455377 ,  
	 Feb 17 2000 
	  
	 Adjustable wheelchair 
	  
    
	 D534711 ,  
	 Jan 27 2005 
	 Dada Corp.  
	 Upper-piping visor 
	  
    
	 D571264 ,  
	 Oct 26 2007 
	  
	 Electric scooter 
	  
    
	 D598816 ,  
	 Sep 26 2007 
	 Gate Rehab Development AB  
	 Wheelchair for bath and hygiene purposes 
	  
    
	 D622641 ,  
	 Jun 25 2009 
	 Karma Medical Products, Co., Ltd.  
	 Wheelchair 
	  
    
	 D628423 ,  
	 Nov 05 2009 
	  
	 Changeable multi-paneled article cover 
	  
    
	 D656070 ,  
	 Nov 10 2010 
	 WILMINGTON SAVINGS FUND SOCIETY, FSB  
	 Wheelchair shroud 
	  
    
	 D687744 ,  
	 Nov 10 2010 
	 WILMINGTON SAVINGS FUND SOCIETY, FSB  
	 Wheelchair seat 
	  
    
	 D691764 ,  
	 Nov 09 2012 
	 ABL IP Holding LLC  
	 Light fixture 
	  
    
	 D738645 ,  
	 Nov 23 2011 
	  
	 Cushioned support 
	  
	
	
	
	
	
	  
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