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					| Patent    D977265 |  
					| Priority Dec 22 2020 |  
					| Filed Dec 22 2020 |  
					| Issued Feb 07 2023 |  
					| Expiry Feb 07 2038 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 0 |  
					 | 41 |  
					 | 
						  n/a |  
						 
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			  The ornamental design for a sitting ball, as shown and described. | 
 
	
FIG. 1 is a top, front, right perspective view of a sitting ball, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The even length broken lines in the drawings depict portions of the sitting ball that form no part of the claimed design.
	
	Berke, Jason Jerold
	
	
	  
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