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Note 5 - Patents and Trademarks, Net
12 Months Ended
Aug. 31, 2021
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]

5.         PATENTS AND TRADEMARKS, NET

 

Patents and trademarks, net consisted of the following:

 

  

August 31, 2021

  

August 31, 2020

 

Patents and trademarks

 $3,018,507  $2,907,852 

Less accumulated amortization

  (2,308,935)  (2,105,846)
  $709,572  $802,006 

 

Patent and trademark costs are amortized over seven years. Costs incurred related to patents and trademarks are capitalized until filed and approved, at which time the amounts capitalized to date are amortized, and any further costs, including maintenance costs, are expensed as incurred. Amortization expense was $203,088 and $231,624 for the years ended August 31, 2021 and 2020, respectively. Amortization expense is estimated to be $190,000 in each of the next four fiscal years.