Maintenance fees coming due
1 maintenance fee comes due on Sep 26, 2027, in the 12 months from Nov 14, 2026. Unpaid by Mar 27, 2028, 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
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| Patent | Title | Holder | Status | Fee due | Lapses if unpaid | Expires | Confidence |
|---|---|---|---|---|---|---|---|
| US 11,939,974 | Systems and Methods of Utilization of a Hydraulic Fracturing Unit Profile to Operate Hydraulic Fracturing Units In force Fee due Sep 26, 2027 Lapses if unpaid Mar 27, 2028 · Low confidence | BJ Energy Solutions, LLC | In force | Sep 26, 2027 | Mar 27, 2028 | Low confidence |
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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.