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PATENTS | 9 Months Ended
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Jun. 30, 2024
PATENTS |
PATENTS | G. PATENTS During the nine and three months ended June 30, 2024 and 2023, there was no impairment of patent costs. The weighted average amortization period for patents is approximately 8 years. For the nine months ended June 30, 2024 and 2023, amortization of patent costs totaled approximately $25,000 and $29,000, respectively. For the three months ended June 30, 2024 and 2023, amortization of patent costs totaled approximately $7,000 and $9,000, respectively. The total estimated future amortization is as follows:
Three months ending September 30, 2024 |  | $ | 8,000 |
Year ending September 30, |  |  |  |
2025 |  |  | 29,000 |
2026 |  |  | 25,000 |
2027 |  |  | 22,000 |
2028 |  |  | 19,000 |
2029 |  |  | 16,000 |
Thereafter |  |  | 54,000 |
Total |  | $ | 173,000 |

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