Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 15, 2027. Unpaid by Aug 16, 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 11,728,259 | Packaging Substrate Having Electric Power Transmitting Elements on Non-Circular Core via of Core Vias and Semiconductor Device Comprising the Same In force Fee due Feb 15, 2027 Lapses if unpaid Aug 16, 2027 · High confidence | Absolics Inc. | In force | Feb 15, 2027 | Aug 16, 2027 | High confidence | |
| US 11,967,542 | Packaging Substrate, and Semiconductor Device Comprising Same In force Fee due Oct 23, 2027 Lapses if unpaid Apr 24, 2028 · High confidence | Absolics Inc. | In force | Oct 23, 2027 | Apr 24, 2028 | High confidence |
2 of 2 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.