Maintenance fees coming due

Lockheed Martin Corporation

310 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 16, 2026. Unpaid by May 17, 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 11,649,042	Collapsible Spar Mandrel Lockheed Martin Corporation In force Fee due Nov 16, 2026 Lapses if unpaid May 17, 2027 Term ends Jan 28, 2041 · High confidence	Lockheed Martin Corporation	In force	Nov 16, 2026	May 17, 2027	Term ends Jan 28, 2041	High confidence
US 10,297,920	Compact Dual Circular Polarization Multi-Band Waveguide Feed Network Lockheed Martin Corporation In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Feb 13, 2038 · High confidence	Lockheed Martin Corporation	In force	Nov 21, 2026	May 21, 2027	Term ends Feb 13, 2038	High confidence
US 10,298,826	Spatial Isolation of Energy Associated with a Scene Lockheed Martin Corporation In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Apr 27, 2034 · High confidence	Lockheed Martin Corporation	In force	Nov 21, 2026	May 21, 2027	Term ends Apr 27, 2034	High confidence
US 11,655,020	Non Rotationally Constrained Friction Damper for Drive Shaft Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Mar 25, 2042 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Mar 25, 2042	High confidence
US 11,655,880	Multi-Speed Gear Box for a Rotary Wing Aircraft Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Jul 15, 2041 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Jul 15, 2041	High confidence
US 11,656,411	Monolithic Fiber-Lens Array for Communication and Remote Sensing Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Jun 24, 2040 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Jun 24, 2040	High confidence
US 11,656,528	Nonlinear Incoherent Combining of Pulsed Lasers Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Aug 4, 2041 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Aug 4, 2041	High confidence
US 11,658,379	Waveguide Hybrid Couplers Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Aug 24, 2041 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Aug 24, 2041	High confidence
US 11,659,751	Stacked Transparent Pixel Structures for Electronic Displays Lockheed Martin Corporation In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Nov 1, 2037 · High confidence	Lockheed Martin Corporation	In force	Nov 23, 2026	May 24, 2027	Term ends Nov 1, 2037	High confidence
US 10,302,409	Super-Pic Spider Lockheed Martin Corporation In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Dec 14, 2037 · High confidence	Lockheed Martin Corporation	In force	Nov 28, 2026	May 28, 2027	Term ends Dec 14, 2037	High confidence
300 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 310 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.

Upgrade to Pro

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