Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 16, 2026. Unpaid by Jun 16, 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 9,057,471 | Method and Device for Tapping and Tracing a Conduit In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 · Medium confidence | Jameson LLC | In force | Dec 16, 2026 | Jun 16, 2027 | Medium confidence | |
| US 9,127,788 | Aerial Sheave Device In force Fee due Mar 8, 2027 Lapses if unpaid Sep 8, 2027 · High confidence | Jameson LLC | In force | Mar 8, 2027 | Sep 8, 2027 | High confidence | |
| US 11,788,566 | Composite Ferrules for Extension Poles In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 · High confidence | Jameson, LLC | In force | Apr 17, 2027 | Oct 18, 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.