Maintenance fees coming due
3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 27, 2027. Unpaid by Aug 27, 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 10,393,994 | Mount for an Optical Structure Having a Flanged Protruding Member and Method of Mounting an Optical Structure Using Such Mount In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 · High confidence | PLX, Inc. | In force | Feb 27, 2027 | Aug 27, 2027 | High confidence | |
| US 11,835,789 | Mirror-Based Assemblies, Including Lateral Transfer Hollow Retroreflectors, and Their Mounting Structures and Mounting Methods In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 · High confidence | PLX, Inc. | In force | Jun 5, 2027 | Dec 6, 2027 | High confidence | |
| US 10,641,989 | Mount for an Optical Structure Having a Flanged Protruding Member and Method of Mounting an Optical Structure Using Such Mount In force Fee due Nov 5, 2027 Lapses if unpaid May 5, 2028 · High confidence | PLX, Inc. | In force | Nov 5, 2027 | May 5, 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.