Maintenance fees coming due
38 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 23, 2026. Unpaid by May 24, 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 11,655,065 | Shippers with Air Cells In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 · High confidence | WestRock Shared Services, LLC | In force | Nov 23, 2026 | May 24, 2027 | High confidence | |
| US 11,655,066 | Retail Ready Containers In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 · High confidence | WestRock Shared Services, LLC | In force | Nov 23, 2026 | May 24, 2027 | High confidence | |
| US 9,038,884 | Carton with Opening and Reclosing Feature In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 · High confidence | WestRock Shared Services, LLC | In force | Nov 26, 2026 | May 26, 2027 | High confidence | |
| US 10,312,731 | Powered Shelf System for Inductively Powering Electrical Components of Consumer Product Packages In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 · High confidence | WestRock Shared Services, LLC | In force | Dec 4, 2026 | Jun 4, 2027 | High confidence | |
| US 9,061,786 | Blank of Sheet Material and Methods and Apparatus for Forming a Container from the Blank In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 · High confidence | WestRock Shared Services, LLC | In force | Dec 23, 2026 | Jun 23, 2027 | High confidence | |
| US 9,061,792 | Reinforced Polygonal Containers and Blanks for Making the Same In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 · High confidence | WestRock Shared Services, LLC | In force | Dec 23, 2026 | Jun 23, 2027 | High confidence | |
| US 10,336,049 | Method for Forming a Heat-Reflective Blank and Container In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 · High confidence | WestRock Shared Services, LLC | In force | Jan 2, 2027 | Jul 2, 2027 | High confidence | |
| US 10,336,501 | Polygonal Containers Having a Locking Bottom and Blanks and Methods for Forming the Same In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 · High confidence | WestRock Shared Services, LLC | In force | Jan 2, 2027 | Jul 2, 2027 | High confidence | |
| US 9,073,659 | Reinforced Polygonal Containers and Blanks of Sheet Material for Making the Same In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 · Medium confidence | WestRock Shared Services, LLC | In force | Jan 7, 2027 | Jul 7, 2027 | Medium confidence | |
| US 9,073,661 | Polygonal Container and Blank for Making the Same In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 · High confidence | WestRock Shared Services, LLC | In force | Jan 7, 2027 | Jul 7, 2027 | High confidence | |
| 28 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 38 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.