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1 maintenance fee comes due on Dec 20, 2026, in the 12 months from Nov 14, 2026. Unpaid by Jun 21, 2027, that one lapses early.
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| Patent | Title | Holder | Status | Fee due | Lapses if unpaid | Expires | Confidence |
|---|---|---|---|---|---|---|---|
| US 11,680,920 | Electromagnetic Impedance Spectroscopy Apparatus and Related Planar Sensor System In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Transtech Systems, Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence |
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