Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on May 7, 2027. Unpaid by Nov 8, 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 11,807,620 | Quinazolinone Compounds and Related Compounds In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 · High confidence | Plexium, Inc. | In force | May 7, 2027 | Nov 8, 2027 | High confidence | |
| US 11,878,968 | Aryl Compounds and Pharmaceutical Compositions That Modulate IKZF2 In force Fee due Jul 23, 2027 Lapses if unpaid Jan 24, 2028 · Medium confidence | Plexium, Inc. | In force | Jul 23, 2027 | Jan 24, 2028 | Medium confidence | |
| US 11,911,760 | Caps for Assay Devices In force Fee due Aug 27, 2027 Lapses if unpaid Feb 28, 2028 · High confidence | Plexium, Inc. | In force | Aug 27, 2027 | Feb 28, 2028 | 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.