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						 Patent  
						   D891351  
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						 Priority  
						Dec 15 2017 
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						 Filed 
						Feb 08 2018  
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						 Issued 
						Jul 28 2020 
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						 Expiry 
						Jul 28 2035 
					   
					   						
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			  The ornamental design for a rotor blade, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a front perspective view of a rotor blade showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a bottom perspective view thereof.
The broken lines in the drawings depict portions of the rotor blade that form no part of the claimed design.
	
	Lanigan, Brendan P., Foskey, Christopher E.
	
	
	
	
	  
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