Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Aug 16, 2027. Unpaid by Feb 16, 2028, 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 9,259,591 | Housing for an Implantable Medical Device In force Fee due Aug 16, 2027 Lapses if unpaid Feb 16, 2028 · High confidence | Cyberonics, Inc. | In force | Aug 16, 2027 | Feb 16, 2028 | High confidence | |
| US 9,289,595 | Medical Lead Termination Sleeve for Implantable Medical Devices In force Fee due Sep 22, 2027 Lapses if unpaid Mar 22, 2028 · High confidence | Cyberonics, Inc. | In force | Sep 22, 2027 | Mar 22, 2028 | 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.