Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 23, 2026. Unpaid by May 24, 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 11,654,994 | Convertible Motorized Running Cycle In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 · Low confidence | Stacyc, LLC | In force | Nov 23, 2026 | May 24, 2027 | Low confidence | |
| US 11,975,799 | Bike Frame Having a Drive Module Enclosure In force Fee due Nov 7, 2027 Lapses if unpaid May 8, 2028 · High confidence | Stacyc, LLC | In force | Nov 7, 2027 | May 8, 2028 | 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.