Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 9, 2026. Unpaid by Jun 9, 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 9,051,367 | Methods of Treating a Tauopathy In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 · Medium confidence | Ipierian, Inc. | In force | Dec 9, 2026 | Jun 9, 2027 | Medium confidence | |
| US 10,400,018 | Tau Peptides, Anti-Tau Antibodies, and Methods of Use Thereof In force Fee due Mar 3, 2027 Lapses if unpaid Sep 3, 2027 · High confidence | Ipierian, Inc. | In force | Mar 3, 2027 | Sep 3, 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.