Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 7, 2027. Unpaid by Jul 7, 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 9,074,338 | Manhole Liner and Method of Using the Same In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 · High confidence | LMK Technologies, LLC | In force | Jan 7, 2027 | Jul 7, 2027 | High confidence | |
| US 10,422,463 | Method and Apparatus for Repairing a Pipe Using a Transition Tube In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 · High confidence | LMK Technologies, LLC | In force | Mar 24, 2027 | Sep 24, 2027 | High confidence | |
| US 10,436,374 | Grooved Sealing Member for Sealing Pipes and Other Underground Structures and Method of Using In force Fee due Apr 8, 2027 Lapses if unpaid Oct 8, 2027 · High confidence | LMK Technologies, LLC | In force | Apr 8, 2027 | Oct 8, 2027 | High confidence | |
| US 10,495,249 | Means and Method for Lining a Pipe In force Fee due Jun 3, 2027 Lapses if unpaid Dec 3, 2027 · High confidence | LMK Technologies, LLC | In force | Jun 3, 2027 | Dec 3, 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.