Maintenance fees coming due
2 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 27, 2026. Unpaid by Jun 28, 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 11,685,343 | Product Metering System In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 · Medium confidence | Cleaning Systems, LLC | In force | Dec 27, 2026 | Jun 28, 2027 | Medium confidence | |
| US 10,488,244 | Self-Filling Graduated Cylinder System In force Fee due May 26, 2027 Lapses if unpaid Nov 26, 2027 · Medium confidence | Cleaning Systems, LLC | In force | May 26, 2027 | Nov 26, 2027 | Medium confidence |
2 of 2 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.