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					| Patent    D546403 |  
					| Priority Jan 30 2006 |  
					| Filed Jan 30 2006 |  
					| Issued Jul 10 2007 |  
					| Expiry Jul 10 2021 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 5 |  
					 | 26 |  
					 | 
						  n/a |  
						 
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			  The ornamental design for a portable exercise system, as shown and described herein. | 
 
	
FIG. 1 is a perspective view of portable exercise system, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view, the rear elevational view being substantially a mirror image thereof;
FIG. 4 is a right side elevational view, the left side elevational view being substantially a mirror image thereof; and,
FIG. 5 is a bottom plan view thereof.
	
	Schaefer, Damon James, Castle, Rebecca Ellen
	
	
	
	
	  
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