Maintenance fees coming due

Springfield, Inc.

3 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jun 19, 2027. Unpaid by Dec 20, 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 11,846,491	Firearm Sights and Assemblies Springfield, Inc. In force Fee due Jun 19, 2027 Lapses if unpaid Dec 20, 2027 Term ends Nov 30, 2040 · High confidence	Springfield, Inc.	In force	Jun 19, 2027	Dec 20, 2027	Term ends Nov 30, 2040	High confidence
US 11,946,714	Bolt Assembly with Clip Springfield, Inc. In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 Term ends Jul 26, 2042 · High confidence	Springfield, Inc.	In force	Oct 2, 2027	Apr 3, 2028	Term ends Jul 26, 2042	High confidence
US 11,959,714	Bolt Assembly Springfield, Inc. In force Fee due Oct 16, 2027 Lapses if unpaid Apr 17, 2028 Term ends Nov 22, 2041 · High confidence	Springfield, Inc.	In force	Oct 16, 2027	Apr 17, 2028	Term ends Nov 22, 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.