Maintenance fees coming due

LSIS Co., Ltd.

127 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 10,290,446	Trip Device for Circuit Breaker LSIS Co., Ltd. In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Mar 19, 2036 · High confidence	LSIS Co., Ltd.	In force	Nov 14, 2026	May 14, 2027	Term ends Mar 19, 2036	High confidence
US 10,298,155	Apparatus for Controlling Inverter LSIS Co., Ltd. In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Dec 19, 2037 · High confidence	LSIS Co., Ltd.	In force	Nov 21, 2026	May 21, 2027	Term ends Dec 19, 2037	High confidence
US 9,048,657	Control Circuit for Electric Power Circuit Switch LSIS Co., Ltd. In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Feb 3, 2034 · High confidence	LSIS Co., Ltd.	In force	Dec 2, 2026	Jun 2, 2027	Term ends Feb 3, 2034	High confidence
US 10,312,682	Device and Method for Assessing Dynamic Stability LSIS Co., Ltd. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Jan 17, 2037 · High confidence	LSIS Co., Ltd.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Jan 17, 2037	High confidence
US 9,054,600	Control Apparatus for Regenerative Medium Voltage Inverter LSIS Co., Ltd. In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Jul 19, 2033 · High confidence	LSIS Co., Ltd.	In force	Dec 9, 2026	Jun 9, 2027	Term ends Jul 19, 2033	High confidence
US 10,337,966	Data Logging Apparatus LSIS Co., Ltd. In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 Term ends Nov 21, 2036 · High confidence	LSIS Co., Ltd.	In force	Jan 2, 2027	Jul 2, 2027	Term ends Nov 21, 2036	High confidence
US 10,340,701	Hybrid Power Storage Apparatus LSIS Co., Ltd. In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 Term ends Sep 2, 2037 · High confidence	LSIS Co., Ltd.	In force	Jan 2, 2027	Jul 2, 2027	Term ends Sep 2, 2037	High confidence
US 9,075,591	Integrated Interface System for Power-System Monitoring and Control System LSIS Co., Ltd. In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 Term ends May 8, 2034 · High confidence	LSIS Co., Ltd.	In force	Jan 7, 2027	Jul 7, 2027	Term ends May 8, 2034	High confidence
US 10,347,453	Multi-Pole Molded Case Circuit Breaker with Insulation Barrier for Rotary Pin LSIS Co., Ltd. In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 Term ends Mar 17, 2037 · High confidence	LSIS Co., Ltd.	In force	Jan 9, 2027	Jul 9, 2027	Term ends Mar 17, 2037	High confidence
US 10,348,064	Submodule LSIS Co., Ltd. In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 Term ends Jan 12, 2038 · High confidence	LSIS Co., Ltd.	In force	Jan 9, 2027	Jul 9, 2027	Term ends Jan 12, 2038	High confidence
117 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 127 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.