Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 18, 2026. Unpaid by Jun 21, 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 10,323,131 | Combination of Substituted Cyclodextrin Compound and Activated Carbon In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 · Medium confidence | Verdant Technologies, LLC | In force | Dec 18, 2026 | Jun 21, 2027 | Medium confidence | |
| US 9,074,106 | Cyclodextrin Compositions, Articles, and Methods In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 · High confidence | Verdant Technologies, LLC | In force | Jan 7, 2027 | Jul 7, 2027 | High confidence |
2 of 2 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.