Maintenance fees coming due

Hexcel Corporation

27 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 30, 2026. Unpaid by Jun 30, 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 9,068,040	Solvent Resistant Thermoplastic Toughened Epoxy Hexcel Corporation In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 Term ends Apr 27, 2031 · High confidence	Hexcel Corporation	In force	Dec 30, 2026	Jun 30, 2027	Term ends Apr 27, 2031	High confidence
US 9,068,345	Multi-Sectional Acoustic Septum Hexcel Corporation In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 Term ends Aug 12, 2033 · High confidence	Hexcel Corporation	In force	Dec 30, 2026	Jun 30, 2027	Term ends Aug 12, 2033	High confidence
US 11,697,254	Peel Ply for Elongate Composite Materials Hexcel Composites Limited In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 Term ends Sep 9, 2040 · High confidence	Hexcel Composites Limited	In force	Jan 11, 2027	Jul 12, 2027	Term ends Sep 9, 2040	High confidence
US 11,702,516	A Curative Composition and a Resin Composition Containing the Curative Composition Hexcel Composites Limited In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends Aug 23, 2039 · High confidence	Hexcel Composites Limited	In force	Jan 18, 2027	Jul 19, 2027	Term ends Aug 23, 2039	High confidence
US 9,096,734	Prepreg With Integrated Multi-Dimensional Gas Venting Network Hexcel Corporation In force Fee due Feb 4, 2027 Lapses if unpaid Aug 4, 2027 Term ends Aug 5, 2031 · High confidence	Hexcel Corporation	In force	Feb 4, 2027	Aug 4, 2027	Term ends Aug 5, 2031	High confidence
US 10,391,735	Use of Fibrous Veils to Reduce Core Crush in Honeycomb Sandwich Structures Hexcel Corporation In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 Term ends Sep 21, 2037 · High confidence	Hexcel Corporation	In force	Feb 27, 2027	Aug 27, 2027	Term ends Sep 21, 2037	High confidence
US 9,132,606	Novel Intermediate Reinforcing Material Consisting of an Array of Spaced-Apart Yarns/Webs Hexcel Reinforcements In force Fee due Mar 15, 2027 Lapses if unpaid Sep 15, 2027 Term ends Apr 5, 2032 · High confidence	Hexcel Reinforcements	In force	Mar 15, 2027	Sep 15, 2027	Term ends Apr 5, 2032	High confidence
US 11,760,058	Reinforcement Material Comprising a Porous Layer Made of Partially Cross-Linked Thermoplastic Polymer and Associated Methods Hexcel Reinforcements Sasu In force Fee due Mar 19, 2027 Lapses if unpaid Sep 20, 2027 Term ends Nov 20, 2038 · High confidence	Hexcel Reinforcements Sasu	In force	Mar 19, 2027	Sep 20, 2027	Term ends Nov 20, 2038	High confidence
US 9,163,317	Diffusion Layer for an Electrochemical Device and Method for Producing Such a Diffusion Layer Commissariat a l'Energie Atomique et aux Energies Alternatives and Hexcel Reinforcements In force Fee due Apr 20, 2027 Lapses if unpaid Oct 20, 2027 Term ends Apr 20, 2031 · High confidence	Commissariat a l'Energie Atomique et aux Energies Alternatives and Hexcel Reinforcements	In force	Apr 20, 2027	Oct 20, 2027	Term ends Apr 20, 2031	High confidence
US 10,465,052	Composite Material with Thermoplastic Toughened Novolac-Based Epoxy Resin Matrix Hexcel Corporation In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends Jun 22, 2036 · High confidence	Hexcel Corporation	In force	May 5, 2027	Nov 5, 2027	Term ends Jun 22, 2036	High confidence
17 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 27 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.