Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 11, 2026. Unpaid by Jun 11, 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 10,319,815 | Laterally Diffused Metal Oxide Semiconductor Transistors for Radio Frequency Power Amplifiers In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 · High confidence | NXP USA, Inc. | In force | Dec 11, 2026 | Jun 11, 2027 | High confidence | |
| US 10,637,400 | RF Amplifier with Conductor-Less Region Underlying Filter Circuit Inductor, and Methods of Manufacture Thereof In force Fee due Oct 28, 2027 Lapses if unpaid Apr 28, 2028 · High confidence | Freescale Semiconductor, Inc. | In force | Oct 28, 2027 | Apr 28, 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.