Maintenance fees coming due
7 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 30, 2026. Unpaid by Jun 1, 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 11,660,286 | Methods and Compositions Comprising a Nitrite-Reductase Promoter for Treatment of Medical Disorders and Preservation of Blood Products In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Epicentrx, Inc. | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 10,342,778 | Treatment of Brain Metastases Using Organonitro Compound Combination Therapy In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 · High confidence | Epicentrx, Inc. | In force | Jan 9, 2027 | Jul 9, 2027 | High confidence | |
| US 11,701,351 | Treatment of Gliomas Using Organonitro Compound Combination Therapy In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 · High confidence | Epicentrx, Inc. | In force | Jan 18, 2027 | Jul 19, 2027 | High confidence | |
| US 11,744,859 | Compositions and Methods for Parenteral Administration of Therapeutic Agents In force Fee due Mar 5, 2027 Lapses if unpaid Sep 7, 2027 · High confidence | Epicentrx, Inc. | In force | Mar 5, 2027 | Sep 7, 2027 | High confidence | |
| US 9,139,519 | Organonitro Thioether Compounds and Medical Uses Thereof In force Fee due Mar 22, 2027 Lapses if unpaid Sep 22, 2027 · High confidence | Epicentrx, Inc. | In force | Mar 22, 2027 | Sep 22, 2027 | High confidence | |
| US 11,834,492 | Human IL-10 Receptor Alpha Fusion Proteins In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 · High confidence | Epicentrx, Inc. | In force | Jun 5, 2027 | Dec 6, 2027 | High confidence | |
| US 10,543,208 | Treatment of Gliomas Using Organonitro Compound Combination Therapy In force Fee due Jul 28, 2027 Lapses if unpaid Jan 28, 2028 · High confidence | Epicentrx, Inc. | In force | Jul 28, 2027 | Jan 28, 2028 | High confidence |
7 of 7 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.