Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Apr 30, 2027. Unpaid by Nov 1, 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 11,804,646 | Antenna Structure and Image Display Device Including the Same In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 · High confidence | Dongwoo Fine-Chem Co., Ltd. and Kreemo Inc. | In force | Apr 30, 2027 | Nov 1, 2027 | High confidence | |
| US 11,848,484 | Antenna Structure and Image Display Device Including the Same In force Fee due Jun 19, 2027 Lapses if unpaid Dec 20, 2027 · High confidence | Dongwoo Fine-Chem Co., Ltd. and Kreemo Inc. | In force | Jun 19, 2027 | Dec 20, 2027 | 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.