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						 Patent  
						   D622316  
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						 Priority  
						Jun 07 2006 
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						 Filed 
						Jan 05 2009  
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						 Issued 
						Aug 24 2010 
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						 Expiry 
						Aug 24 2024 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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					    4 
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					    39 
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			  The ornamental design for a dual lever ring mechanism having rectilinear binder rings, as shown and described. 
			  
			  
			  
			  
			 
		 | 
	
 
	
FIG. 1 is a perspective of a dual lever ring mechanism having rectilinear binder rings;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view of the ring mechanism, the left side elevational view being identical; and,
FIG. 5 is an end view of the ring mechanism, both end views of the mechanism being identical.
	
	To, Chun Yuen
	
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 1473354,  | 
	  | 
	  | 
	  | 
	 
    
	 | 2218105,  | 
	  | 
	  | 
	  | 
	 
    
	 | 2371474,  | 
	  | 
	  | 
	  | 
	 
    
	 | 2673564,  | 
	  | 
	  | 
	  | 
	 
    
	 | 3263687,  | 
	  | 
	  | 
	  | 
	 
    
	 | 3404685,  | 
	  | 
	  | 
	  | 
	 
    
	 | 3827111,  | 
	  | 
	  | 
	  | 
	 
    
	 | 4552478,  | 
	 Jul 12 1984 | 
	 WORLD WIDE STATIONERY MFG  CO  LTD ; COHEN, LEWIS | 
	 Ring mechanism | 
	 
    
	 | 4792253,  | 
	 Oct 27 1986 | 
	  | 
	 Binder ring having slip-on folio stops | 
	 
    
	 | 5106222,  | 
	 Jun 27 1990 | 
	 Acco World Corporation | 
	 Embossed cover for ring binder mechanism | 
	 
    
	 | 5332327,  | 
	 Sep 23 1991 | 
	 U S  RING BINDER, L P  | 
	 D ring binder | 
	 
    
	 | 5718529,  | 
	 May 21 1996 | 
	 Leco Stationary Manufacturing Company Limited | 
	 Ring binder | 
	 
    
	 | 5971649,  | 
	 Jan 26 1998 | 
	 WORLD WIDE STATIONERY MANUFACTURING CO  LTD  | 
	 Ring binder mechanism | 
	 
    
	 | 5975785,  | 
	 May 21 1996 | 
	 LECO Stationery Manufacturing Company Limited | 
	 Ring binder | 
	 
    
	 | 5980146,  | 
	 Oct 20 1995 | 
	 WORLD WIDE STATIONERY MANUFACTURING CO  LTD  KOON WAH MIRRORS FACTORY | 
	 Ring binder | 
	 
    
	 | 6007266,  | 
	 Sep 04 1996 | 
	 WORLD WIDE STATIONERY MANUFACTURING CO , LTD  | 
	 Fastener for a ring binder and method of producing a binder assembly | 
	 
    
	 | 6033144,  | 
	 Aug 22 1996 | 
	 WORLD WIDE STATIONERY MFG  CO , LTD  | 
	 Ring binder mechanism | 
	 
    
	 | 6045286,  | 
	 Aug 27 1998 | 
	 Hong Kong Stationery Manufacturing Co., Ltd. | 
	 Metal ring binder with auxiliary springs | 
	 
    
	 | 6142697,  | 
	 Sep 02 1999 | 
	 Burnes Home Accents, LLC | 
	 Ring lock for album or binder | 
	 
    
	 | 6217247,  | 
	 Dec 27 1999 | 
	 World Wide Stationery Manufacturing Company Limited | 
	 Ring binder mechanism | 
	 
    
	 | 6749357,  | 
	 Nov 30 2001 | 
	 World Wide Stationery Manufacturing Company, Limited | 
	 Ring binder mechanism | 
	 
    
	 | 6758621,  | 
	 Aug 03 2001 | 
	 World Wide Stationery Manufacturing Company, Ltd. | 
	 Ring binder mechanism | 
	 
    
	 | 7241067,  | 
	 Oct 08 2003 | 
	 World Wide Stationery Manufacturing Company, Limited | 
	 Ring mechanism having blunt ends | 
	 
    
	 | 7296946,  | 
	 Nov 30 2001 | 
	 Microsoft Corporation | 
	 Ring binder mechanism | 
	 
    
	 | 7524128,  | 
	 Dec 30 2004 | 
	 WORLD WIDE STATIONERY MFG  CO , LTD  | 
	 Ring binder mechanism spring biased to a locked position | 
	 
    
	 | 7527449,  | 
	 Dec 12 2005 | 
	 WORKLIFE BRANDS LLC | 
	 Ring binder mechanism | 
	 
    
	 | 20060251467,  | 
	  | 
	  | 
	  | 
	 
    
	 | 20070086836,  | 
	  | 
	  | 
	  | 
	 
    
	 | D325928,  | 
	 Dec 05 1984 | 
	 BANK OF AMERICA, N A  | 
	 Looseleaf binder | 
	 
    
	 | D356112,  | 
	 Feb 04 1993 | 
	 C-LOCK, INC  | 
	 Ring binder | 
	 
    
	 | D377805,  | 
	 Oct 20 1995 | 
	 WORLD WIDE STATIONERY MANUFACTURING CO  LTD  | 
	 Ring binder | 
	 
    
	 | D382593,  | 
	 Oct 09 1993 | 
	 World Wide Stationery Manufacturing Company Limited | 
	 Ring binder | 
	 
    
	 | D392997,  | 
	 Jul 23 1996 | 
	 LECO STATIONERY MANUFACTURING CO  LTD | 
	 Ring binder | 
	 
    
	 | D408851,  | 
	 Feb 21 1996 | 
	 World Wide Stationery Manufacturing Company Limited | 
	 Ring binder | 
	 
    
	 | D426571,  | 
	 Mar 31 1998 | 
	 WORLDWIDE STATIONERY MFG  CO , LTD  | 
	 Ring binder | 
	 
    
	 | D433445,  | 
	 Mar 31 1998 | 
	 World Wide Stationery Mfg. Co., Ltd. | 
	 Ring binder | 
	 
    
	 | D434071,  | 
	 Mar 31 1998 | 
	 World Wide Stationery Mfg. Co., Ltd. | 
	 Ring binder | 
	 
    
	 | D582477,  | 
	 Jul 03 2007 | 
	 World Wide Stationery Manufacturing Company Limited | 
	 Binding ring | 
	 
    
	 | 18806,  | 
	  | 
	  | 
	  | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
	  n/a
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Schedule | 
	  
	  n/a