Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 22, 2027. Unpaid by Aug 23, 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 11,732,562 | Offshore Frac Head Clamp Apparatus and Method of Use Thereof In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 · High confidence | Gulfstream Services, Inc. | In force | Feb 22, 2027 | Aug 23, 2027 | High confidence | |
| US 10,605,372 | Method and Apparatus for Deactivating a Hydraulic Device That Is Leaking Hydraulic Oil In force Fee due Sep 30, 2027 Lapses if unpaid Mar 31, 2028 · High confidence | Gulfstream Services, Inc. | In force | Sep 30, 2027 | Mar 31, 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.