Maintenance fees coming due
4 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 9,083,007 | Continuous Prismatic Cell Stacking System and Method In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | Microvast, Inc. | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 9,136,564 | Battery Pack System and Liquid Leakage Detection Method Thereof In force Fee due Mar 15, 2027 Lapses if unpaid Sep 15, 2027 · High confidence | Microvast Inc. | In force | Mar 15, 2027 | Sep 15, 2027 | High confidence | |
| US 9,281,540 | Lithium-Ion Battery Comprising An Ion-Selective Conducting Layer In force Fee due Sep 8, 2027 Lapses if unpaid Mar 8, 2028 · High confidence | Microvast Advanced Membrane Inc. | In force | Sep 8, 2027 | Mar 8, 2028 | High confidence | |
| US 9,306,248 | Battery Pack and Liquid Leakage Detection Method Thereof In force Fee due Oct 5, 2027 Lapses if unpaid Apr 5, 2028 · High confidence | Microvast Inc. | In force | Oct 5, 2027 | Apr 5, 2028 | 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.