Maintenance fees coming due

BAE Systems plc

162 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 26, 2026. Unpaid by May 26, 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 9,038,953	Aircraft Thermal Insulation BAE Systems PLC In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Jul 19, 2031 · High confidence	BAE Systems PLC	In force	Nov 26, 2026	May 26, 2027	Term ends Jul 19, 2031	High confidence
US 10,305,407	Machine Loss Modeling for Improved Field Oriented Control Accuracy BAE Systems Controls Inc. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Sep 8, 2035 · High confidence	BAE Systems Controls Inc.	In force	Nov 28, 2026	May 28, 2027	Term ends Sep 8, 2035	High confidence
US 10,310,067	Wind Turbine Mitigation in Radar Systems BAE Systems PLC In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Aug 4, 2035 · High confidence	BAE Systems PLC	In force	Dec 4, 2026	Jun 4, 2027	Term ends Aug 4, 2035	High confidence
US 10,310,929	Diagnosing Combinations of Failures in a System BAE Systems PLC In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Jun 22, 2036 · High confidence	BAE Systems PLC	In force	Dec 4, 2026	Jun 4, 2027	Term ends Jun 22, 2036	High confidence
US 10,311,785	Improvements in and Relating to Drivers BAE Systems PLC In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Feb 4, 2036 · High confidence	BAE Systems PLC	In force	Dec 4, 2026	Jun 4, 2027	Term ends Feb 4, 2036	High confidence
US 11,671,050	Ac Drive Dv/Dt Filter Using Reverse Recovery Charge of Diodes BAE Systems Controls Inc. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Apr 29, 2040 · High confidence	BAE Systems Controls Inc.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Apr 29, 2040	High confidence
US 9,053,433	Assisting Vehicle Guidance Over Terrain BAE Systems PLC In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Mar 10, 2032 · High confidence	BAE Systems PLC	In force	Dec 9, 2026	Jun 9, 2027	Term ends Mar 10, 2032	High confidence
US 9,054,427	A Planar Vivaldi Antenna Array BAE Systems PLC In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Jan 24, 2032 · High confidence	BAE Systems PLC	In force	Dec 9, 2026	Jun 9, 2027	Term ends Jan 24, 2032	High confidence
US 9,054,777	Improvements Relating to Signal Processing BAE Systems PLC In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Dec 31, 2031 · High confidence	BAE Systems PLC	In force	Dec 9, 2026	Jun 9, 2027	Term ends Dec 31, 2031	High confidence
US 11,680,781	Enhanced Performance Ammunition BAE Systems PLC In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jun 19, 2040 · High confidence	BAE Systems PLC	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jun 19, 2040	High confidence
152 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 162 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.