Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Mar 22, 2027. Unpaid by Sep 22, 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 9,140,516 | Trigger Mechanism for a Crossbow In force Fee due Mar 22, 2027 Lapses if unpaid Sep 22, 2027 · High confidence | Bowtech, LLC | In force | Mar 22, 2027 | Sep 22, 2027 | High confidence | |
| US 9,194,672 | Shock-absorbing bolt for a crossbow In force Fee due May 24, 2027 Lapses if unpaid Nov 24, 2027 · High confidence | Bowtech, LLC | In force | May 24, 2027 | Nov 24, 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.