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7. PATENTS
 6 Months Ended
Jun. 30, 2016
Notes to Financial Statements  
7. PATENTS

7.         Patents

  

   

June 30, 2016

Cost

    

Accumulated

Amortization

    

June 30, 2016

Net

  
Patents   $ 205,373     $ 105,436     $ 99,937  

 

   

December 31, 2015

Cost

    

Accumulated

Amortization

    

December 31, 2015

Net

  
Patents   $ 191,698     $ 91,075     $ 100,623  

 

Increase in 2016 cost was due to currency conversion. June 30, 2016 cost in Canadian dollars - $265,102 (December 31, 2015 - $265,102 in Canadian dollars).

 

Amount of amortization for the six months ended June 30, 2016 - $7,623 (2015 - $8,202) and is included in cost of sales in the consolidated statements of operations and comprehensive income (loss).

 

Estimated amortization expense over the next five years is as follows:

 

2016   $ 15,247  
2017     15,247  
2018     15,247  
2019     15,247  
2020     15,247