Maintenance fees coming due

Changxin Memory Technologies, Inc.

477 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 6, 2026. Unpaid by Jun 7, 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 11,669,015	Photolithography Device and Method for Monitoring Position of a Light Source in a Photolithography Device Changxin Memory Technologies, Inc. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Aug 1, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Aug 1, 2041	High confidence
US 11,670,349	Memory Circuit, Memory Precharge Control Method and Device Changxin Memory Technologies, Inc. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Nov 24, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Nov 24, 2041	High confidence
US 11,671,106	Pulse Signal Generation Circuit and Method, and Memory Changxin Memory Technologies, Inc. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Jul 27, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Jul 27, 2041	High confidence
US 11,675,275	Positioning Method and Apparatus for Particles on Reticle, Storage Medium, and Electronic Device Changxin Memory Technologies, Inc. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Jun 30, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Jun 30, 2041	High confidence
US 11,676,642	Memory for Implementing at Least One of Reading or Writing Command Changxin Memory Technologies, Inc. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Aug 7, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Aug 7, 2041	High confidence
US 11,676,678	Defect Detecting Method and Device for Word Line Driving Circuit Changxin Memory Technologies, Inc. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Dec 1, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Dec 1, 2041	High confidence
US 11,676,810	Semiconductor Structure Processing Method and Forming Method Changxin Memory Technologies, Inc. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends May 24, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 13, 2026	Jun 14, 2027	Term ends May 24, 2041	High confidence
US 11,681,313	Voltage Generating Circuit, Inverter, Delay Circuit, and Logic Gate Circuit Changxin Memory Technologies, Inc. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jun 7, 2041 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jun 7, 2041	High confidence
US 11,682,466	One-Time Programmable Memory Read-Write Circuit Changxin Memory Technologies, Inc. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Oct 14, 2040 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Oct 14, 2040	High confidence
US 11,683,027	Comparators Changxin Memory Technologies, Inc. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Nov 19, 2040 · High confidence	Changxin Memory Technologies, Inc.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Nov 19, 2040	High confidence
467 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

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