Maintenance fees coming due

Sigray, Inc.

8 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 27, 2026. Unpaid by Jun 28, 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 11,686,692	High Throughput 3D X-Ray Imaging System Using a Transmission X-Ray Source Sigray, Inc. In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 Term ends Dec 2, 2041 · High confidence	Sigray, Inc.	In force	Dec 27, 2026	Jun 28, 2027	Term ends Dec 2, 2041	High confidence
US 10,349,908	X-Ray Interferometric Imaging System Sigray, Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends Sep 2, 2036 · High confidence	Sigray, Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends Sep 2, 2036	High confidence
US 10,352,880	Method and Apparatus for X-Ray Microscopy Sigray, Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends Nov 10, 2034 · High confidence	Sigray, Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends Nov 10, 2034	High confidence
US 10,401,309	X-Ray Techniques Using Structured Illumination Sigray, Inc. In force Fee due Mar 3, 2027 Lapses if unpaid Sep 3, 2027 Term ends Dec 18, 2035 · High confidence	Sigray, Inc.	In force	Mar 3, 2027	Sep 3, 2027	Term ends Dec 18, 2035	High confidence
US 10,416,099	Method of Performing X-Ray Spectroscopy and X-Ray Absorption Spectrometer System Sigray, Inc. In force Fee due Mar 17, 2027 Lapses if unpaid Sep 17, 2027 Term ends Sep 19, 2034 · High confidence	Sigray, Inc.	In force	Mar 17, 2027	Sep 17, 2027	Term ends Sep 19, 2034	High confidence
US 10,466,185	X-Ray Interrogation System Using Multiple X-Ray Beams Sigray, Inc. In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends Dec 3, 2037 · High confidence	Sigray, Inc.	In force	May 5, 2027	Nov 5, 2027	Term ends Dec 3, 2037	High confidence
US 11,885,755	X-Ray Sequential Array Wavelength Dispersive Spectrometer Sigray, Inc. In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 Term ends Apr 28, 2043 · High confidence	Sigray, Inc.	In force	Jul 30, 2027	Jan 31, 2028	Term ends Apr 28, 2043	High confidence
US 10,578,566	X-Ray Emission Spectrometer System Sigray, Inc. In force Fee due Sep 3, 2027 Lapses if unpaid Mar 3, 2028 Term ends Apr 1, 2039 · High confidence	Sigray, Inc.	In force	Sep 3, 2027	Mar 3, 2028	Term ends Apr 1, 2039	High confidence

8 of 8 patents shown. Soonest fee due date first, then patent number.

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