Maintenance fees coming due
5 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 14, 2026. Unpaid by May 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 10,288,394 | Warhead Fragmenting Structure of Compacted Fragments In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 · High confidence | Textron Innovations Inc. | In force | Nov 14, 2026 | May 14, 2027 | High confidence | |
| US 11,697,407 | Utilizing an Air Flow Assembly with Intermittent Thruster Capabilities In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 · High confidence | Textron Systems Corporation | In force | Jan 11, 2027 | Jul 12, 2027 | High confidence | |
| US 11,758,841 | Gang-Type Lawn Mower In force Fee due Mar 19, 2027 Lapses if unpaid Sep 20, 2027 · High confidence | Textron Inc. | In force | Mar 19, 2027 | Sep 20, 2027 | High confidence | |
| US 11,801,904 | Techniques Involving a Modular Vehicle Belly Armor Kit In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 · High confidence | Textron Systems Corporation | In force | Apr 30, 2027 | Nov 1, 2027 | High confidence | |
| US 11,897,324 | Dual Reservoir Gas Tank In force Fee due Aug 13, 2027 Lapses if unpaid Feb 14, 2028 · High confidence | Arctic Cat Inc. | In force | Aug 13, 2027 | Feb 14, 2028 | High confidence |
5 of 5 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.