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						 Patent  
						   D833683  
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						 Priority  
						Jun 26 2017 
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						 Filed 
						Jun 26 2017  
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						 Issued 
						Nov 13 2018 
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						 Expiry 
						Nov 13 2033 
					   
					   						
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						 Entity 
						unknown 
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					    6 
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					    8 
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			  The ornamental design for a welders' mask, as shown. 
			  
			  
			  
			  
			 
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FIG. 1 is a front elevational view of a welders' mask showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is another perspective view thereof.
	
	Yang, Zhaolin, Zhou, Jianrong, Wang, Rongjiang
	
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | D637353,  | 
	 Mar 16 2010 | 
	  | 
	 Welding helmet | 
	 
    
	 | D669227,  | 
	 May 03 2011 | 
	  | 
	 Welding helmet | 
	 
    
	 | D774701,  | 
	 Feb 09 2015 | 
	 NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD  | 
	 Welding helmet | 
	 
    
	 | D775427,  | 
	 Apr 26 2013 | 
	 YUNNAN OUTAI SCIENCE AND TRADE CO , LTD  | 
	 Welding helmet | 
	 
    
	 | D788988,  | 
	 Nov 26 2015 | 
	 Ningbo Geostar Photoelectric Technology Co., Ltd. | 
	 Welding helmet | 
	 
    
	 | D788991,  | 
	 Jul 30 2016 | 
	 RPB SAFETY, LLC | 
	 Welding visor | 
	 
    
	 | D793626,  | 
	 Apr 14 2016 | 
	 NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD  | 
	 Welding helmet | 
	 
    
	 | D796118,  | 
	 Apr 29 2016 | 
	 NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD  | 
	 Welders' mask | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
	  n/a
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Schedule | 
	  
	  n/a