Maintenance fees coming due
1 maintenance fee comes due on Nov 30, 2026, in the 12 months from Nov 14, 2026. Unpaid by Jun 1, 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 11,664,639 | Device Having Non-Linear Filter In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · Low confidence | Semtech Canada Corporation | In force | Nov 30, 2026 | Jun 1, 2027 | Low 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.