Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 14, 2027. Unpaid by Jul 14, 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 9,081,050 | Semiconductor Device and Test Method In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | Fujitsu Semiconductor Memory Solution Limited | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 9,099,545 | Compound Semiconductor Device and Method of Manufacturing Same In force Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 · High confidence | Transphorm Japan, Inc. | In force | Feb 4, 2027 | Aug 4, 2027 | High confidence | |
| US 9,178,523 | Circuitry and Methods for Use in Mixed-Signals Circuitry In force Fee due May 3, 2027 Lapses if unpaid Nov 3, 2027 · High confidence | Socionext Inc. | In force | May 3, 2027 | Nov 3, 2027 | High confidence |
3 of 3 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.