Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Aug 4, 2027. Unpaid by Feb 4, 2028, 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 10,552,878 | Systems and Methods for Discovery and Tracking of Obscured Web-Based Advertisements In force Fee due Aug 4, 2027 Lapses if unpaid Feb 4, 2028 · Medium confidence | Pathmatics, Inc. | In force | Aug 4, 2027 | Feb 4, 2028 | Medium confidence | |
| US 10,650,407 | Systems and Methods for Discovery and Tracking of Web-Based Advertisements In force Fee due Nov 12, 2027 Lapses if unpaid May 12, 2028 · Medium confidence | Pathmatics, Inc. | In force | Nov 12, 2027 | May 12, 2028 | Medium 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.