Maintenance fees coming due

Alstom

55 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 23, 2026. Unpaid by May 24, 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 11,654,797	Vehicle with Rotating Driver's Cab Alstom Transport Technologies In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Aug 27, 2041 · High confidence	Alstom Transport Technologies	In force	Nov 23, 2026	May 24, 2027	Term ends Aug 27, 2041	High confidence
US 9,038,794	Method for Optimizing the Operation of a Reversible Traction Substation and Associated Devices Alstom Transport Technologies In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Dec 26, 2033 · High confidence	Alstom Transport Technologies	In force	Nov 26, 2026	May 26, 2027	Term ends Dec 26, 2033	High confidence
US 10,302,188	Pulling Device for a Vehicle, in Particular for a Railway Vehicle, Having an Improved Security Alstom Transport Technologies In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Dec 5, 2037 · High confidence	Alstom Transport Technologies	In force	Nov 28, 2026	May 28, 2027	Term ends Dec 5, 2037	High confidence
US 9,046,553	Method and Apparatus for Dynamic Signal Switching of a Merging Unit in an Electrical Power System Alstom Grid UK Ltd. In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Oct 19, 2030 · High confidence	Alstom Grid UK Ltd.	In force	Dec 2, 2026	Jun 2, 2027	Term ends Oct 19, 2030	High confidence
US 9,048,659	An Energy Storage Subsystem for a Vehicle Alstom Transport Technologies In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Apr 19, 2033 · High confidence	Alstom Transport Technologies	In force	Dec 2, 2026	Jun 2, 2027	Term ends Apr 19, 2033	High confidence
US 11,667,310	Control Device, Control System, Railway Vehicle and Associated Control Method Alstom Transport Technologies In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Apr 25, 2041 · High confidence	Alstom Transport Technologies	In force	Dec 6, 2026	Jun 7, 2027	Term ends Apr 25, 2041	High confidence
US 10,315,670	Bogie for Full Double Deck EMU Alstom Transport Technologies In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Jun 16, 2037 · High confidence	Alstom Transport Technologies	In force	Dec 11, 2026	Jun 11, 2027	Term ends Jun 16, 2037	High confidence
US 10,319,822	Controlling Method of a Transistor of Type IGBT and Associated Controlling Device ALSTOM Transport Technologies In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Sep 22, 2037 · High confidence	ALSTOM Transport Technologies	In force	Dec 11, 2026	Jun 11, 2027	Term ends Sep 22, 2037	High confidence
US 10,328,952	Method for Manufacturing a Driving Cabin of a Railway Vehicle, More Particularly for a Tramway Alstom Transport Technologies In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Mar 16, 2037 · High confidence	Alstom Transport Technologies	In force	Dec 25, 2026	Jun 25, 2027	Term ends Mar 16, 2037	High confidence
US 11,702,116	Railway Vehicle with Antifreezing Device, and Related Method Alstom Transport Technologies In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends May 19, 2041 · High confidence	Alstom Transport Technologies	In force	Jan 18, 2027	Jul 19, 2027	Term ends May 19, 2041	High confidence
45 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 55 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.