Maintenance fees coming due
1 maintenance fee comes due on Oct 30, 2027, in the 12 months from Nov 15, 2026. Unpaid by May 1, 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 11,973,331 | Current/Voltage Sensor and Universal Tap-Off Box In force Fee due Oct 30, 2027 Lapses if unpaid May 1, 2028 · Medium confidence | Power Distribution, Inc. | In force | Oct 30, 2027 | May 1, 2028 | Medium confidence |
1 of 1 patent 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.