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						 Patent  
						   D894849  
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						 Priority  
						May 24 2017 
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						 Filed 
						Oct 11 2019  
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						 Issued 
						Sep 01 2020 
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						 Expiry 
						Sep 01 2035 
					   
					   						
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			  The ornamental design for a heat sink, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a top perspective view of the new design for a heat sink as seen from the front, top;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right side elevational view thereof, the opposite side view being a mirror image thereof; and,
FIG. 7 is a bottom perspective view thereof.
The broken lines shown in the drawings illustrate unclaimed portions of the heat sink and form no part of the claimed design.
	
	Ice, Chad, Price, Vernon
	
	
	
	
	  
 	  	 | Patent | 
	  	 Priority | 
	  	 Assignee | 
	  	 Title | 
	  
	      
	 | 20020131238,  | 
	  | 
	  | 
	  | 
	 
    
	 | 20040206476,  | 
	  | 
	  | 
	  | 
	 
    
	 | D267942,  | 
	 Nov 21 1980 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Heat-sink for electronic semiconductor devices | 
	 
    
	 | D269084,  | 
	 Apr 08 1981 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Dual heat sink for electronic semiconductor devices | 
	 
    
	 | D280319,  | 
	 Jul 29 1983 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Staggered-fin heat sink for electrical devices | 
	 
    
	 | D283418,  | 
	 Jul 29 1983 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Clip-on heat sink for electronic devices | 
	 
    
	 | D295281,  | 
	 Apr 01 1985 | 
	 Aavid Thermalloy, LLC | 
	 Heat sink or similar article | 
	 
    
	 | D295282,  | 
	 Apr 01 1985 | 
	 Aavid Thermalloy, LLC | 
	 Heat sink or similar article | 
	 
    
	 | D296324,  | 
	 Aug 12 1985 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Heat sink with locking catch for tabs of electronic devices | 
	 
    
	 | D296778,  | 
	 Oct 31 1985 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Slotted dual-channel heat sink for electronic devices | 
	 
    
	 | D314945,  | 
	 Dec 09 1988 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Heat sink | 
	 
    
	 | D317907,  | 
	 Jun 06 1989 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Clip-on heat sink for an electronic device | 
	 
    
	 | D322594,  | 
	 Mar 09 1987 | 
	 LASALLE BUSINESS CREDIT, INC  | 
	 Clip-on winged heat sink for an electronic device | 
	 
    
	 | D361986,  | 
	 Apr 05 1994 | 
	 WAKEFIELD THERMAL SOLUTIONS, INC  | 
	 Heat sink | 
	 
    
	 | D376349,  | 
	 May 15 1995 | 
	 WAKEFIELD THERMAL SOLUTIONS, INC  | 
	 Clamping heat sink | 
	 
    
	 | D390539,  | 
	 Jul 29 1996 | 
	 WAKEFIELD THERMAL SOLUTIONS, INC  | 
	 Heat sink | 
	 
    
	 | D394043,  | 
	 Feb 23 1996 | 
	 WAKEFIELD THERMAL SOLUTIONS, INC  | 
	 Clamping heat sink | 
	 
    
	 | D407381,  | 
	 Jul 29 1996 | 
	 WAKEFIELD THERMAL SOLUTIONS, INC  | 
	 Heat sink | 
	 
    
	 | D409157,  | 
	 Mar 09 1998 | 
	 Schneider Automation Inc.; Square D Company | 
	 Clip-on heat sink | 
	 
    
	 | D513171,  | 
	 Oct 03 2003 | 
	 HDT EXPEDITIONARY SYSTEMS, INC  | 
	 Beam clamp | 
	 
	
	
	
	  
	  	 | Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
	  
	  | Oct 11 2019 |  | Osram Sylvania Inc. | (assignment on the face of the patent) |  | / | 
    
    
    
	
	
	
	  
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