Maintenance fees coming due
9 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 11, 2026. Unpaid by Jun 11, 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 10,314,671 | Apparatus and Method for Endodontic Treatment In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 · High confidence | Sonendo, Inc. | In force | Dec 11, 2026 | Jun 11, 2027 | High confidence | |
| US 11,680,141 | Hydrogel Materials for Obturation In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Sonendo, Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 10,327,866 | Apparatus and Method for Endodontic Treatment In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Sonendo, Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 11,701,202 | Apparatus and Methods for Filling Teeth and Root Canals In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 · High confidence | Sonendo, Inc. | In force | Jan 18, 2027 | Jul 19, 2027 | High confidence | |
| US 10,363,120 | Apparatus and Methods for Cleaning Teeth and Root Canals In force Fee due Jan 30, 2027 Lapses if unpaid Jul 30, 2027 · High confidence | Sonendo, Inc. | In force | Jan 30, 2027 | Jul 30, 2027 | High confidence | |
| US 10,420,630 | Liquid Jet Apparatus and Methods for Dental Treatments In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 · High confidence | Sonendo, Inc. | In force | Mar 24, 2027 | Sep 24, 2027 | High confidence | |
| US 11,918,432 | Apparatus and Methods for Treating Root Canals of Teeth In force Fee due Sep 5, 2027 Lapses if unpaid Mar 6, 2028 · High confidence | Sonendo, Inc. | In force | Sep 5, 2027 | Mar 6, 2028 | High confidence | |
| US 11,968,669 | Scheduling Database System In force Fee due Oct 23, 2027 Lapses if unpaid Apr 24, 2028 · High confidence | Sonendo, Inc. | In force | Oct 23, 2027 | Apr 24, 2028 | High confidence | |
| US 10,631,962 | Apparatus and Methods for Cleaning Teeth and Gingival Pockets In force Fee due Oct 28, 2027 Lapses if unpaid Apr 28, 2028 · High confidence | Sonendo, Inc. | In force | Oct 28, 2027 | Apr 28, 2028 | High confidence |
9 of 9 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.