Maintenance fees coming due
1 maintenance fee comes due on Sep 26, 2027, in the 12 months from Nov 14, 2026. Unpaid by Mar 27, 2028, 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 11,939,145 | Carbon Fiber Air Cargo Container In force Fee due Sep 26, 2027 Lapses if unpaid Mar 27, 2028 · High confidence | GSTC LLC | In force | Sep 26, 2027 | Mar 27, 2028 | High confidence |
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