Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 13, 2026. Unpaid by Jun 14, 2027, that one lapses early.
A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5
and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the
six month grace period that follows.
| Patent | Title | Holder | Status | Fee due | Lapses if unpaid | Expires | Confidence |
|---|---|---|---|---|---|---|---|
| US 11,675,073 | Modular Portable Ultrasound Systems In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 · High confidence | Teratech Corporation | In force | Dec 13, 2026 | Jun 14, 2027 | High confidence | |
| US 9,162,179 | Apparatus for Decomposing Perfluorocarbon and Harmful Gas Using High-Density Confined Plasma Source In force Fee due Apr 20, 2027 Lapses if unpaid Oct 20, 2027 · High confidence | Teratech Co., Ltd. | In force | Apr 20, 2027 | Oct 20, 2027 | High confidence | |
| US 11,857,363 | Tablet Ultrasound System In force Fee due Jul 2, 2027 Lapses if unpaid Jan 3, 2028 · High confidence | Teratech Corporation | In force | Jul 2, 2027 | Jan 3, 2028 | High confidence |
3 of 3 patents shown. Soonest fee due date first, then patent number.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.