Maintenance fees coming due

Otis Elevator Company

315 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 14, 2026. Unpaid by May 14, 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 10,291,904	Auto Commissioning System and Method Otis Elevator Company In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends May 30, 2037 · High confidence	Otis Elevator Company	In force	Nov 14, 2026	May 14, 2027	Term ends May 30, 2037	High confidence
US 11,649,137	Elevator Sound Systems Otis Elevator Company In force Fee due Nov 16, 2026 Lapses if unpaid May 17, 2027 Term ends Mar 17, 2042 · High confidence	Otis Elevator Company	In force	Nov 16, 2026	May 17, 2027	Term ends Mar 17, 2042	High confidence
US 9,038,782	Elevator Load Bearing Member Vibration Control Otis Elevator Company In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Aug 8, 2031 · High confidence	Otis Elevator Company	In force	Nov 26, 2026	May 26, 2027	Term ends Aug 8, 2031	High confidence
US 10,302,440	Navigation Terminal, System and Method for Taking Elevator Otis Elevator Company In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Apr 16, 2037 · High confidence	Otis Elevator Company	In force	Nov 28, 2026	May 28, 2027	Term ends Apr 16, 2037	High confidence
US 10,302,549	Handrail Friction Checking Device Otis Elevator Company In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Aug 1, 2037 · High confidence	Otis Elevator Company	In force	Nov 28, 2026	May 28, 2027	Term ends Aug 1, 2037	High confidence
US 11,661,311	Elevator System Otis Elevator Company In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Feb 3, 2042 · High confidence	Otis Elevator Company	In force	Nov 30, 2026	Jun 1, 2027	Term ends Feb 3, 2042	High confidence
US 10,308,476	Elevator Control System Otis Elevator Company In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Feb 2, 2035 · High confidence	Otis Elevator Company	In force	Dec 4, 2026	Jun 4, 2027	Term ends Feb 2, 2035	High confidence
US 10,308,480	Embedded Power Module Otis Elevator Company In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Feb 23, 2037 · High confidence	Otis Elevator Company	In force	Dec 4, 2026	Jun 4, 2027	Term ends Feb 23, 2037	High confidence
US 10,308,482	Tread Element for People Conveyor Comprising a Cantilever Arm Otis Elevator Company In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends May 6, 2035 · High confidence	Otis Elevator Company	In force	Dec 4, 2026	Jun 4, 2027	Term ends May 6, 2035	High confidence
US 11,667,493	Elevator Operation for Occupancy Otis Elevator Company In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Apr 6, 2042 · High confidence	Otis Elevator Company	In force	Dec 6, 2026	Jun 7, 2027	Term ends Apr 6, 2042	High confidence
305 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 315 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.