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 11,672,584 | Medical System and Method of Use In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 · Low confidence | Tsunami Medtech, LLC | In force | Dec 13, 2026 | Jun 14, 2027 | Low confidence | |
| US 10,499,973 | Medical System and Method of Use In force Fee due Jun 10, 2027 Lapses if unpaid Dec 10, 2027 · Medium confidence | Tsunami Medtech, LLC | In force | Jun 10, 2027 | Dec 10, 2027 | Medium confidence | |
| US 10,548,653 | Methods for Delivering Energy into a Target Tissue of a Body In force Fee due Aug 4, 2027 Lapses if unpaid Feb 4, 2028 · High confidence | Tsunami Medtech, LLC | In force | Aug 4, 2027 | Feb 4, 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.