Maintenance fees coming due
116 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 19, 2026. Unpaid by May 19, 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 9,034,135 | Hem Flange Joint In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 · High confidence | Sika Technology AG | In force | Nov 19, 2026 | May 19, 2027 | High confidence | |
| US 11,655,630 | Sealing Element and Method for Producing a Sealing Element In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 · High confidence | Sika Technology AG | In force | Nov 23, 2026 | May 24, 2027 | High confidence | |
| US 10,301,422 | Fast-Curing Composition Containing Silane Groups In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 · High confidence | Sika Technology AG | In force | Nov 28, 2026 | May 28, 2027 | High confidence | |
| US 10,301,423 | Amine for Low-Emission Epoxy Resin Compositions In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 · High confidence | Sika Technology AG | In force | Nov 28, 2026 | May 28, 2027 | High confidence | |
| US 11,667,823 | Urethane Adhesive Composition In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 · High confidence | Sika Technology AG | In force | Dec 6, 2026 | Jun 7, 2027 | High confidence | |
| US 11,680,131 | Two-Component Polyurethane Composition In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Sika Technology AG | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,680,132 | Hardener for Epoxy Resins In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Sika Technology AG | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 10,328,775 | Reinforcing Element for a Closed Section and Manufacturing Method In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Sika Technology AG | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 9,068,365 | Anchoring the Ends of Tension Members on Reinforced Concrete Beams In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 · High confidence | Sika Technology AG | In force | Dec 30, 2026 | Jun 30, 2027 | High confidence | |
| US 10,344,157 | Manufacturing Process and Composition for Foamed Pvc-P Rock Shields In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 · High confidence | Sika Technology AG | In force | Jan 9, 2027 | Jul 9, 2027 | High confidence | |
| 106 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 116 patents shown. Soonest fee due date first, then patent number.
Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.