Maintenance fees coming due

Solid Power Operating, Inc.

3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Aug 27, 2027. Unpaid by Feb 28, 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 six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 11,916,193	Solid Electrolyte Material and Solid-State Battery Made Therewith Solid Power Operating, Inc. In force Fee due Aug 27, 2027 Lapses if unpaid Feb 28, 2028 Term ends Feb 11, 2042 · High confidence	Solid Power Operating, Inc.	In force	Aug 27, 2027	Feb 28, 2028	Term ends Feb 11, 2042	High confidence
US 11,923,503	Bromine and Iodine Lithium Phosphorous Sulfide Solid Electrolyte and Solid-State Battery Including the Same Solid Power Operating, Inc. In force Fee due Sep 5, 2027 Lapses if unpaid Mar 6, 2028 Term ends Jul 11, 2041 · High confidence	Solid Power Operating, Inc.	In force	Sep 5, 2027	Mar 6, 2028	Term ends Jul 11, 2041	High confidence
US 11,958,742	Method of Preparing a Water-Reactive Sulfide Material Solid Power Operating, Inc. In force Fee due Oct 16, 2027 Lapses if unpaid Apr 17, 2028 Term ends Feb 17, 2041 · High confidence	Solid Power Operating, Inc.	In force	Oct 16, 2027	Apr 17, 2028	Term ends Feb 17, 2041	High confidence

3 of 3 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.