Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 16, 2027. Unpaid by Jul 16, 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 10,352,885 | Apparatus and Method for Producing and Analyzing a Plurality of Sample Materials In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 · High confidence | Thyssenkrupp Polysius GmbH | In force | Jan 16, 2027 | Jul 16, 2027 | High confidence | |
| US 10,370,293 | Method and System for the Thermal Treatment of Dispersible Raw Material In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 · High confidence | Thyssenkrupp Polysius GmbH | In force | Feb 6, 2027 | Aug 6, 2027 | High confidence | |
| US 9,121,640 | System for Thermally Processing Lumpy Solid Material In force Fee due Mar 1, 2027 Lapses if unpaid Sep 1, 2027 · High confidence | Thyssenkrupp Polysius GmbH | In force | Mar 1, 2027 | Sep 1, 2027 | High confidence | |
| US 10,632,503 | Classifying Device for Classifying a Granular Material Flow In force Fee due Oct 28, 2027 Lapses if unpaid Apr 28, 2028 · High confidence | Thyssenkrupp Polysius GmbH | In force | Oct 28, 2027 | Apr 28, 2028 | High confidence |
4 of 4 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.