Maintenance fees coming due
4 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Jan 23, 2027. Unpaid by Jul 23, 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 10,358,953 | Valve In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 · High confidence | Delphi Automotive Systems Luxembourg S.A. | In force | Jan 23, 2027 | Jul 23, 2027 | High confidence | |
| US 11,888,426 | Method of Controlling Braking of an Multi-Phase Electrical Motor In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 · High confidence | Delphi Automotive Systems Luxembourg S.A. | In force | Jul 30, 2027 | Jan 31, 2028 | High confidence | |
| US 11,938,456 | Layered Particles and Processes Thereof In force Fee due Sep 26, 2027 Lapses if unpaid Mar 27, 2028 · High confidence | Delphi Scientific, LLC | In force | Sep 26, 2027 | Mar 27, 2028 | High confidence | |
| US 10,648,444 | Method and Apparatus to Control an Ignition System In force Fee due Nov 12, 2027 Lapses if unpaid May 12, 2028 · High confidence | Delphi Automotive Systems Luxembourg S.A. | In force | Nov 12, 2027 | May 12, 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.