Maintenance fees coming due
8 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 25, 2026. Unpaid by Jun 25, 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 10,328,228 | Systems and Methods for Ambulatory Generation of Nitric Oxide In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Third Pole, Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 11,691,879 | Systems and Methods for Nitric Oxide Generation with Humidity Control In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Third Pole, Inc. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,827,989 | Systems and Methods for Preventing and Treating Infections with Nitric Oxide In force Fee due May 28, 2027 Lapses if unpaid Nov 29, 2027 · Medium confidence | Third Pole, Inc. | In force | May 28, 2027 | Nov 29, 2027 | Medium confidence | |
| US 11,833,309 | Systems and Methods for Generating Nitric Oxide In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 · High confidence | Third Pole, Inc. | In force | Jun 5, 2027 | Dec 6, 2027 | High confidence | |
| US 10,532,176 | Systems and Methods for Generating Nitric Oxide In force Fee due Jul 14, 2027 Lapses if unpaid Jan 14, 2028 · High confidence | Third Pole, Inc. | In force | Jul 14, 2027 | Jan 14, 2028 | High confidence | |
| US 11,911,566 | Systems and Methods for Ambulatory Generation of Nitric Oxide In force Fee due Aug 27, 2027 Lapses if unpaid Feb 28, 2028 · High confidence | Third Pole, Inc. | In force | Aug 27, 2027 | Feb 28, 2028 | High confidence | |
| US 10,576,239 | Systems and Methods for Ambulatory Generation of Nitric Oxide In force Fee due Sep 3, 2027 Lapses if unpaid Mar 3, 2028 · High confidence | Third Pole, Inc. | In force | Sep 3, 2027 | Mar 3, 2028 | High confidence | |
| US 11,975,139 | Systems and Methods for Delivering Nitric Oxide In force Fee due Nov 7, 2027 Lapses if unpaid May 8, 2028 · High confidence | Third Pole, Inc. | In force | Nov 7, 2027 | May 8, 2028 | High confidence |
8 of 8 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.