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Intangible Assets - net
 12 Months Ended
Jun. 30, 2012
Notes to Financial Statements  
Intangible Assets
5.    Intangible Assets – net
 
   Intangible assets consist of the following:
 
     
June 30, 2012
    
June 30, 2011
  
     
 
    
 
  
 
 
            
 
Gross carrying amount
   $ 621,302     $ 621,302  
 
Accumulated amortization
     (553,037 )     (520,169 )
 
Patents and Trademarks
   $ 68,265     $ 101,133  
  
Amortization expense related to intangible assets totaled approximately $33,000 during the fiscal years ended June 30, 2012 and 2011.

The amount of the June 30, 2012, net intangible asset value is expected to be fully amortized by the end of fiscal 2015, with annual amortization estimated as follows:
 
2013
2014
2015
Total
          32,868
          32,868
            2,529
            68,265