Maintenance fees coming due
38 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 19, 2026. Unpaid by May 19, 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 9,033,555 | Wrap-Around Window for Lighting Module In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 · Medium confidence | Excelitas Technologies Corp. | In force | Nov 19, 2026 | May 19, 2027 | Medium confidence | |
| US 9,048,614 | Method and System for Avoiding Package Induced Failure in Swept Semiconductor Source In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 · High confidence | Excelitas Technologies Corp. | In force | Dec 2, 2026 | Jun 2, 2027 | High confidence | |
| US 10,314,120 | System for Powering Dual Magnetrons Using a Dual Power Supply In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 · High confidence | Excelitas Technologies Corp. | In force | Dec 4, 2026 | Jun 4, 2027 | High confidence | |
| US 10,328,457 | Compound Elliptical Reflector for Curing Optical Fibers In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Excelitas Technologies Corp. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 10,330,304 | Heatsink Including Thick Film Layer for Uv LED Arrays, and Methods of Forming Uv LED Arrays In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Excelitas Technologies Corp. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 11,699,894 | Bonded Tunable VCSEL with Bi-Directional Actuation In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · High confidence | Excelitas Technologies Corp. | In force | Jan 11, 2027 | Jul 12, 2027 | High confidence | |
| US 10,359,551 | Dielectric-Enhanced Metal Coatings for MEMS Tunable Filters In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 · High confidence | Excelitas Technologies Corp. | In force | Jan 23, 2027 | Jul 23, 2027 | High confidence | |
| US 9,101,024 | Smart Fet Circuit In force Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 · High confidence | Excelitas Technologies Corp. | In force | Feb 4, 2027 | Aug 4, 2027 | High confidence | |
| US 10,371,499 | Laser Swept Source with Controlled Mode Locking for OCT Medical Imaging In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 · High confidence | Excelitas Technologies Corp. | In force | Feb 6, 2027 | Aug 6, 2027 | High confidence | |
| US 9,103,544 | Microchannel Cooler for Light Emitting Diode Light Fixtures In force Fee due Feb 11, 2027 Lapses if unpaid Aug 11, 2027 · High confidence | Excelitas Technologies Corp. | In force | Feb 11, 2027 | Aug 11, 2027 | High confidence | |
| 28 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro | |||||||
10 of 38 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.