Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 23, 2026. Unpaid by Jun 23, 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 9,064,861 | Assembly and a Chip Package In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 · High confidence | Effect Photonics B.V. | In force | Dec 23, 2026 | Jun 23, 2027 | High confidence | |
| US 11,714,230 | Environmentally Protected Photonic Integrated Circuit In force Fee due Feb 1, 2027 Lapses if unpaid Aug 2, 2027 · High confidence | Effect Photonics B.V. | In force | Feb 1, 2027 | Aug 2, 2027 | High confidence | |
| US 11,874,495 | Monolithic Photonic Integrated Circuit and Opto-Electronic System Comprising the Same In force Fee due Jul 16, 2027 Lapses if unpaid Jan 18, 2028 · High confidence | Effect Photonics B.V. | In force | Jul 16, 2027 | Jan 18, 2028 | High confidence | |
| US 11,899,254 | Photonic Integrated Circuit and Opto-Electronic System Comprising the Same In force Fee due Aug 13, 2027 Lapses if unpaid Feb 14, 2028 · High confidence | Effect Photonics B.V. | In force | Aug 13, 2027 | Feb 14, 2028 | High confidence |
4 of 4 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.