Maintenance fees coming due

Jac Operations, Inc.

5 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 4, 2027. Unpaid by Aug 4, 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 9,096,238	Open Top Hopper Railcar with Biased Door Seal and Enlarged Contoured End Door Jac Operations, Inc. In force Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 Term ends Jan 24, 2031 · High confidence	Jac Operations, Inc.	In force	Feb 4, 2027	Aug 4, 2027	Term ends Jan 24, 2031	High confidence
US 10,486,719	Railroad Coupler Knuckle with External Weight Reducing Features and Method of Forming the Same Jac Operations, Inc. In force Fee due May 26, 2027 Lapses if unpaid Nov 26, 2027 Term ends Nov 8, 2037 · High confidence	Jac Operations, Inc.	In force	May 26, 2027	Nov 26, 2027	Term ends Nov 8, 2037	High confidence
US 10,589,757	Coil Railcar with Floating Floor Sheet Jac Operations, Inc. In force Fee due Sep 17, 2027 Lapses if unpaid Mar 17, 2028 Term ends Jan 30, 2037 · High confidence	Jac Operations, Inc.	In force	Sep 17, 2027	Mar 17, 2028	Term ends Jan 30, 2037	High confidence
US 11,945,476	Railcar Cold Formed Center Sill with Stiffness Enhancing Structure Jac Operations, Inc. In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 Ends no later than Nov 21, 2039 · Medium confidence	Jac Operations, Inc.	In force	Oct 2, 2027	Apr 3, 2028	Ends no later than Nov 21, 2039	Medium confidence
US 11,958,509	Hopper Railcar with Door Deflector for Transverse Pivoted Outlet Gate, Door Deflector and Method of Retrofitting Hopper Railcar to Include Door Deflector for Transverse Pivoted Outlet Gate Jac Operations, Inc. In force Fee due Oct 16, 2027 Lapses if unpaid Apr 17, 2028 Term ends Mar 23, 2040 · High confidence	Jac Operations, Inc.	In force	Oct 16, 2027	Apr 17, 2028	Term ends Mar 23, 2040	High confidence

5 of 5 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.