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PATENTS | 6 Months Ended
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Mar. 31, 2024
PATENTS |
PATENTS | G. PATENTS During the six and three months ended March 31, 2024 and 2023, there was no impairment of patent costs. The weighted average amortization period for patents is approximately 8 years. For the six months ended March 31, 2024 and 2023, amortization of patent costs totaled approximately $17,000 and $20,000, respectively. For the three months ended March 31, 2024 and 2023, amortization of patent costs totaled approximately $8,000 and $10,000, respectively. The total estimated future amortization is as follows:
Six months ending September 30, 2024 |  | $ | 15,000 |
Year ending September 30, |  |  |  |
2025 |  |  | 29,000 |
2026 |  |  | 25,000 |
2027 |  |  | 22,000 |
2028 |  |  | 19,000 |
2029 |  |  | 16,000 |
Thereafter |  |  | 54,000 |
Total |  | $ | 180,000 |

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