Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Jan 11, 2027. Unpaid by Jul 12, 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 11,697,638 | 5-Methoxy-N,N-DIMETHYLTRYPTAMINE Crystalline Forms In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · High confidence | Cybin UK Ltd. | In force | Jan 11, 2027 | Jul 12, 2027 | High confidence | |
| US 11,771,681 | Therapeutic Compounds In force Fee due Apr 3, 2027 Lapses if unpaid Oct 4, 2027 · Medium confidence | Cybin UK Ltd. | In force | Apr 3, 2027 | Oct 4, 2027 | Medium confidence | |
| US 11,773,062 | Deuterated Compounds In force Fee due Apr 3, 2027 Lapses if unpaid Oct 4, 2027 · High confidence | Cybin UK Ltd. | In force | Apr 3, 2027 | Oct 4, 2027 | 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.