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						 Patent  
						   D840606  
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						 Priority  
						Apr 03 2018 
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						 Filed 
						Apr 03 2018  
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						 Issued 
						Feb 12 2019 
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						 Expiry 
						Feb 12 2034 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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					    4 
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					    22 
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			  The ornamental design for a grinding protection plate, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a perspective view showing the new design for a grinding protection plate for a welding helmet;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a left side view thereof.
	
	Juhlin, Oskar E., Berggren, Martin A. J. M.
	
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 1337036,  | 
	  | 
	  | 
	  | 
	 
    
	 | 3945044,  | 
	 Mar 07 1974 | 
	 FIRST SECURITY BANK OF IDAHO, N A  | 
	 Goggle and accessories therefor | 
	 
    
	 | 5302815,  | 
	 Jan 10 1992 | 
	 Sperian Welding Protection AG | 
	 Light protection apparatus comprising an electrically controllable light protection filter element | 
	 
    
	 | 6161225,  | 
	 Apr 30 1998 | 
	  | 
	 Shield structure of helmet | 
	 
    
	 | 7520630,  | 
	 Nov 04 2005 | 
	 Trispec Eye Gear | 
	 Mask illumination device and personnel locator and/or communicator | 
	 
    
	 | 8701212,  | 
	 Sep 26 2012 | 
	 3M Innovative Properties Company | 
	 Elongated guide, and visor removably mountable thereto | 
	 
    
	 | 9271871,  | 
	 Nov 23 2009 | 
	 MENTA PATENT PARTNERS, LLC; MENTA, GREGORY S  | 
	 Face protector lens assembly and method of use | 
	 
    
	 | 9596902,  | 
	 May 30 2014 | 
	 3M Innovative Properties Company | 
	 Earmuff accommodating welding shield | 
	 
    
	 | D255283,  | 
	 Jun 07 1978 | 
	  | 
	 Fireman's helmet | 
	 
    
	 | D340546,  | 
	 Feb 08 1991 | 
	 Shoei Kako Kabushiki Kaisha | 
	 Helmet | 
	 
    
	 | D360058,  | 
	 Sep 10 1993 | 
	  | 
	 Multi-function helmet | 
	 
    
	 | D517745,  | 
	 Nov 12 2004 | 
	 3M Innovative Properties Company | 
	 Chin portion of welding helmet visor | 
	 
    
	 | D584008,  | 
	 Nov 15 2007 | 
	 3M Innovative Properties Company | 
	 Welding helmet front opening | 
	 
    
	 | D592811,  | 
	 Nov 15 2007 | 
	 3M Innovative Properties Company | 
	 Welding helmet collar portion | 
	 
    
	 | D668001,  | 
	 Mar 10 2010 | 
	 3M Innovative Properties Company | 
	 Front opening frame of a welding helmet | 
	 
    
	 | D669227,  | 
	 May 03 2011 | 
	  | 
	 Welding helmet | 
	 
    
	 | D674150,  | 
	 Mar 10 2010 | 
	 3M Innovative Properties Company | 
	 Welding helmet | 
	 
    
	 | D775427,  | 
	 Apr 26 2013 | 
	 YUNNAN OUTAI SCIENCE AND TRADE CO , LTD  | 
	 Welding helmet | 
	 
    
	 | D781507,  | 
	 Mar 04 2016 | 
	 Otos Wing Co., Ltd.; OTOS WING CO , LTD  | 
	 Sight glass of welding mask | 
	 
    
	 | D781508,  | 
	 Mar 04 2016 | 
	 Otos Wing Co., Ltd.; OTOS WING CO , LTD  | 
	 Sight glass of welding mask | 
	 
    
	 | D793007,  | 
	 Feb 24 2016 | 
	 NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD  | 
	 Welding helmet | 
	 
    
	 | D819892,  | 
	 Jan 13 2017 | 
	 HJC Corp. | 
	 Helmet | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
	  n/a
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Schedule | 
	  
	  n/a