Maintenance fees coming due
3 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 9,064,716 | Stacking Devices at Finished Package Level In force (reinstated) Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 · High confidence | Virtium LLC | In force (reinstated) | Dec 23, 2026 | Jun 23, 2027 | High confidence | |
| US 9,099,173 | Classifying Flash Devices Using ECC In force (reinstated) Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 · High confidence | Virtium LLC | In force (reinstated) | Feb 4, 2027 | Aug 4, 2027 | High confidence | |
| US 9,305,655 | Solving MLC NAND Paired Page Program Using Reduced Spatial Redundancy In force (reinstated) Fee due Oct 5, 2027 Lapses if unpaid Apr 5, 2028 · High confidence | Virtium LLC | In force (reinstated) | Oct 5, 2027 | Apr 5, 2028 | 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.