Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Apr 29, 2027. Unpaid by Oct 29, 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 10,456,310 | Bed Step Stool and Method of Use In force Fee due Apr 29, 2027 Lapses if unpaid Oct 29, 2027 · High confidence | Wattba, LLC | In force | Apr 29, 2027 | Oct 29, 2027 | High confidence | |
| US 11,850,197 | Step Stool and Method of Use In force Fee due Jun 26, 2027 Lapses if unpaid Dec 27, 2027 · High confidence | Wattba, LLC | In force | Jun 26, 2027 | Dec 27, 2027 | 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.