Maintenance fees coming due

Andersen Corporation

23 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 11, 2026. Unpaid by Jun 11, 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 10,317,247	Fenestration Unit Monitoring Apparatus with Tethers and Methods Andersen Corporation In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Oct 19, 2037 · High confidence	Andersen Corporation	In force	Dec 11, 2026	Jun 11, 2027	Term ends Oct 19, 2037	High confidence
US 11,680,434	Damped Door Closer System and Method Andersen Corporation In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jul 19, 2041 · High confidence	Andersen Corporation	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jul 19, 2041	High confidence
US 11,680,439	Selective Placement of Advanced Composites in Extruded Articles and Building Components Andersen Corporation In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Oct 21, 2039 · High confidence	Andersen Corporation	In force	Dec 20, 2026	Jun 21, 2027	Term ends Oct 21, 2039	High confidence
US 10,329,831	Laminated Glass Retention System Andersen Corporation In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Jun 28, 2032 · Medium confidence	Andersen Corporation	In force	Dec 25, 2026	Jun 25, 2027	Term ends Jun 28, 2032	Medium confidence
US 9,068,377	Ribbon Sealed Lock Assemblies and Methods Andersen Corporation In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 Term ends May 20, 2033 · High confidence	Andersen Corporation	In force	Dec 30, 2026	Jun 30, 2027	Term ends May 20, 2033	High confidence
US 9,097,059	Draining Sill and Frame Assembly Incorporating the Same Andersen Corporation In force Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 Term ends May 1, 2034 · High confidence	Andersen Corporation	In force	Feb 4, 2027	Aug 4, 2027	Term ends May 1, 2034	High confidence
US 11,725,417	Fenestration Cam Lock Assemblies and Methods Andersen Corporation In force Fee due Feb 15, 2027 Lapses if unpaid Aug 16, 2027 Term ends Sep 25, 2039 · High confidence	Andersen Corporation	In force	Feb 15, 2027	Aug 16, 2027	Term ends Sep 25, 2039	High confidence
US 11,725,442	Hinge Assembly with Energy Control and Methods Andersen Corporation In force Fee due Feb 15, 2027 Lapses if unpaid Aug 16, 2027 Term ends Apr 23, 2041 · High confidence	Andersen Corporation	In force	Feb 15, 2027	Aug 16, 2027	Term ends Apr 23, 2041	High confidence
US 11,732,520	Drive Systems and Hinged Window Assemblies Incorporating the Same Andersen Corporation In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Jun 16, 2037 · High confidence	Andersen Corporation	In force	Feb 22, 2027	Aug 23, 2027	Term ends Jun 16, 2037	High confidence
US 10,422,173	Interlock Assemblies for Fenestration Systems and Methods Andersen Corporation In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 Term ends Jan 4, 2038 · High confidence	Andersen Corporation	In force	Mar 24, 2027	Sep 24, 2027	Term ends Jan 4, 2038	High confidence
13 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 23 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.

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