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					| Patent    D946747 |  
					| Priority Jul 24 2020 |  
					| Filed Jul 24 2020 |  
					| Issued Mar 22 2022 |  
					| Expiry Mar 22 2037 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 2 |  
					 | 15 |  
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			  The ornamental design for a protective face mask, as shown and described. | 
 
	
FIG. 1 is a front perspective view of a protective face mask showing my new design;
FIG. 2 is a perspective rear view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
	
	Mathews, David G.
	
	
	
	
	  
 	  	 | Patent | Priority | Assignee | Title | 
	      
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	 | D812737, | Jul 06 2016 | SleepNet Corporation | Face mask | 
    
	 | D870390, | Aug 12 2019 |  | Mask | 
    
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