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						 Patent  
						   D776378  
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						 Priority  
						Feb 13 2015 
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						 Filed 
						Feb 13 2015  
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						 Issued 
						Jan 10 2017 
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						 Expiry 
						Jan 10 2031 
					   
 TERM.DISCL. 
					   						
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						 Assg.orig 
						
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						 Entity 
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			  The ornamental design for a floor cleaning roller core, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a perspective view of a floor cleaning roller core showing our new design, with the roller tube cut away to show our core design;
FIG. 2 is an enlarged perspective view of the core in FIG. 1 (with the roller tube removed);
FIG. 3 is a front view thereof;
FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. 3;
FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 3;
FIG. 6 is an enlarged right end view thereof; and,
FIG. 7 is an enlarged left end view thereof.
The broken lines illustrate environmental features that form no part of the claimed design.
	
	Blouin, Matthew, Ting, Gao Ke
	
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 8881339,  | 
	 Apr 29 2011 | 
	 iRobot Corporation | 
	 Robotic vacuum | 
	 
    
	 | 8955192,  | 
	 Apr 29 2011 | 
	 iRobot Corporation | 
	 Robotic vacuum cleaning system | 
	 
    
	 | 125786,  | 
	  | 
	  | 
	  | 
	 
    
	 | 222702,  | 
	  | 
	  | 
	  | 
	 
    
	 | D431698,  | 
	 Apr 28 1999 | 
	 MATSUSHITA ELECTRIC INDUSTRIAL CO , LTD  | 
	 Rotary brush for electric vacuum cleaner | 
	 
    
	 | D471332,  | 
	 Mar 16 2001 | 
	 Aktiebolaget Electrolux | 
	 Brush roll for a vacuum cleaner | 
	 
    
	 | D478698,  | 
	 Apr 05 2002 | 
	 Superior Brush Company | 
	 Agitator for a vacuum cleaner | 
	 
    
	 | D518258,  | 
	 Jul 09 2004 | 
	 Tacony Corporation | 
	 Brush roll for a vacuum cleaner | 
	 
    
	 | D680287,  | 
	 Aug 17 2011 | 
	 Techtronic Floor Care Technology Limited | 
	 Vacuum cleaner beater bar | 
	 
    
	 | D680289,  | 
	 Jul 13 2011 | 
	 Aktiebolaget Electrolux | 
	 Vacuum cleaner brush | 
	 
    
	 | D681291,  | 
	 Aug 17 2011 | 
	 Techtronic Floor Care Technology Limited | 
	 Vacuum cleaner beater bar | 
	 
    
	 | D699010,  | 
	 Apr 30 2012 | 
	 iRobot Corporation | 
	 Cleaning element for a robotic vacuum | 
	 
    
	 | D716510,  | 
	 Apr 30 2012 | 
	 iRobot Corporation | 
	 Cleaning element for a robotic vacuum | 
	 
    
	 | D728877,  | 
	 Oct 18 2013 | 
	 iRobot Corporation | 
	 Vacuum roller | 
	 
    
	 | D747052,  | 
	 Oct 18 2013 | 
	 iRobot Corporation | 
	 Vacuum roller | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
	  n/a
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Schedule | 
	  
	  n/a