Maintenance fees coming due
1 maintenance fee comes due on May 12, 2027, in the 12 months from Nov 15, 2026. Unpaid by Nov 12, 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 10,472,392 | Macrocyclic Inhibitors of Flaviviridae Viruses In force Fee due May 12, 2027 Lapses if unpaid Nov 12, 2027 · Medium confidence | Cypralis Limited | In force | May 12, 2027 | Nov 12, 2027 | Medium confidence |
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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.