Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 27, 2026. Unpaid by Jun 28, 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 11,684,680 | Synthetic DNA Vectors and Methods of Use In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 · High confidence | Aldevron, LLC | In force | Dec 27, 2026 | Jun 28, 2027 | High confidence | |
| US 11,692,159 | Growth of Bacterial Host Cells in Gas Permeable Low-Density Polyethylene Bags for Production of Plasmid DNA or Recombinant Molecules In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Aldevron, LLC | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,766,490 | Synthetic DNA Vectors and Methods of Use In force Fee due Mar 26, 2027 Lapses if unpaid Sep 27, 2027 · High confidence | Aldevron, LLC | In force | Mar 26, 2027 | Sep 27, 2027 | High confidence | |
| US 11,851,665 | Replicative Minicircle Vectors With Improved Expression In force Fee due Jun 26, 2027 Lapses if unpaid Dec 27, 2027 · High confidence | Aldevron, L.L.C. | In force | Jun 26, 2027 | Dec 27, 2027 | 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.