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						 Patent  
						   D844764  
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						 Priority  
						Aug 02 2017 
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						 Filed 
						Aug 02 2017  
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						 Issued 
						Apr 02 2019 
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						 Expiry 
						Apr 02 2034 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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			  The ornamental design for a air purifier, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a perspective view of a air purifier showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines showing portions of the air purifier form no part of the claimed design.
	
	Xie, Jianjun
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	  
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | D243430,  | 
	 Oct 23 1975 | 
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	 | D372768,  | 
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	 DAIL CORPORATION, THE | 
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	 Jul 27 1994 | 
	 S  C  JOHNSON & SON, INC  | 
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	 | D768415,  | 
	 Aug 11 2014 | 
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	 Seashell holder for rings and things | 
	 
	
	
	
	
	
	  
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