Maintenance fees coming due

Briggs & Stratton, LLC

68 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 26, 2026. Unpaid by May 26, 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 9,038,490	Tractors Including Automatic Reset of a Power Takeoff Circuit Briggs & Stratton, LLC In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Sep 12, 2033 · High confidence	Briggs & Stratton, LLC	In force	Nov 26, 2026	May 26, 2027	Term ends Sep 12, 2033	High confidence
US 11,665,988	Stand-On Outdoor Power Equipment for Aerating Soil Briggs & Stratton, LLC In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Jul 20, 2041 · High confidence	Briggs & Stratton, LLC	In force	Dec 6, 2026	Jun 7, 2027	Term ends Jul 20, 2041	High confidence
US 11,668,270	Electronic Fuel Injection Module Briggs & Stratton, LLC In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Oct 11, 2039 · High confidence	Briggs & Stratton, LLC	In force	Dec 6, 2026	Jun 7, 2027	Term ends Oct 11, 2039	High confidence
US 9,051,927	Water Pump Having Two Operating Conditions Briggs & Stratton, LLC In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Dec 2, 2032 · Medium confidence	Briggs & Stratton, LLC	In force	Dec 9, 2026	Jun 9, 2027	Term ends Dec 2, 2032	Medium confidence
US 10,319,207	Portable Generator Including Carbon Monoxide Detector Briggs & Stratton, LLC In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Feb 1, 2038 · High confidence	Briggs & Stratton, LLC	In force	Dec 11, 2026	Jun 11, 2027	Term ends Feb 1, 2038	High confidence
US 11,672,201	Modular Mower Deck for Use with a Lawnmower Briggs & Stratton, LLC In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Apr 30, 2040 · High confidence	Briggs & Stratton, LLC	In force	Dec 13, 2026	Jun 14, 2027	Term ends Apr 30, 2040	High confidence
US 11,682,800	Battery Packs with Cell Module Assemblies Usable in Multiple Applications Briggs & Stratton, LLC In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Oct 10, 2039 · High confidence	Briggs & Stratton, LLC	In force	Dec 20, 2026	Jun 21, 2027	Term ends Oct 10, 2039	High confidence
US 10,330,061	Fuel Injection System Briggs & Stratton, LLC In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Oct 24, 2033 · High confidence	Briggs & Stratton, LLC	In force	Dec 25, 2026	Jun 25, 2027	Term ends Oct 24, 2033	High confidence
US 11,690,315	Systems and Devices for Lawn Care Briggs & Stratton, LLC In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Jan 25, 2039 · High confidence	Briggs & Stratton, LLC	In force	Jan 4, 2027	Jul 6, 2027	Term ends Jan 25, 2039	High confidence
US 11,690,331	Debris-Collecting Apparatus and Method of Collecting Debris Briggs & Stratton, LLC In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Apr 12, 2033 · High confidence	Briggs & Stratton, LLC	In force	Jan 4, 2027	Jul 6, 2027	Term ends Apr 12, 2033	High confidence
58 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 68 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

Upgrade to Pro

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.