Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 20, 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 11,680,044 | Pharmaceutical Composition Comprising 5-Methoxy-N,N-DIMETHYLTRYPTAMINE In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Beckley Psytech Limited | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,697,651 | Ergoline Analogues In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · High confidence | Beckley Psytech Limited | In force | Jan 11, 2027 | Jul 12, 2027 | High confidence | |
| US 11,773,063 | Pharmaceutically Acceptable Salts and Compositions Thereof In force Fee due Apr 3, 2027 Lapses if unpaid Oct 4, 2027 · High confidence | Beckley Psytech Limited | In force | Apr 3, 2027 | Oct 4, 2027 | High confidence | |
| US 11,787,806 | Ergoline Analogues In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 · High confidence | Beckley Psytech Limited | In force | Apr 17, 2027 | Oct 18, 2027 | High confidence |
4 of 4 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.