Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Apr 6, 2027. Unpaid by Oct 6, 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 9,149,052 | Methods of Obtaining Sterile Milk and Compositions Thereof In force Fee due Apr 6, 2027 Lapses if unpaid Oct 6, 2027 · High confidence | Prolacta Bioscience | In force | Apr 6, 2027 | Oct 6, 2027 | High confidence | |
| US 11,805,785 | Microfiltration of Human Milk to Reduce Bacterial Contamination In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 · High confidence | Prolacta Bioscience, Inc. | In force | May 7, 2027 | Nov 8, 2027 | High confidence | |
| US 10,506,818 | Microfiltration of Human Milk to Reduce Bacterial Contamination In force Fee due Jun 17, 2027 Lapses if unpaid Dec 17, 2027 · High confidence | Prolacta Bioscience, Inc. | In force | Jun 17, 2027 | Dec 17, 2027 | High confidence |
3 of 3 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.