Maintenance fees coming due

Cellectis

30 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 28, 2026. Unpaid by May 28, 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 10,301,614	Method to Overcome DNA Chemical Modifications Sensitivity of Engineered Tale DNA Binding Domains Cellectis, S.A. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Sep 20, 2034 · High confidence	Cellectis, S.A.	In force	Nov 28, 2026	May 28, 2027	Term ends Sep 20, 2034	High confidence
US 10,316,101	Bcma (CD269) Specific Chimeric Antigen Receptors for Cancer Immunotherapy Cellectis In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Apr 13, 2035 · High confidence	Cellectis	In force	Dec 11, 2026	Jun 11, 2027	Term ends Apr 13, 2035	High confidence
US 11,674,155	Sequential Gene Editing in Primary Immune Cells Cellectis In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Jun 30, 2037 · High confidence	Cellectis	In force	Dec 13, 2026	Jun 14, 2027	Term ends Jun 30, 2037	High confidence
US 11,685,935	New Compact Scaffold of CAS9 in the Type II CRISPR System Cellectis In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 Term ends May 19, 2035 · High confidence	Cellectis	In force	Dec 27, 2026	Jun 28, 2027	Term ends May 19, 2035	High confidence
US 11,690,873	New Universal Chimeric Antigen Receptor T Cells Specific for CD22 Cellectis S.A. In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Nov 3, 2039 · High confidence	Cellectis S.A.	In force	Jan 4, 2027	Jul 6, 2027	Term ends Nov 3, 2039	High confidence
US 11,692,169	Cells for Immunotherapy Engineered for Targeting Antigen Present Both on Immune Cells and Pathological Cells Cellectis In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Ends no later than Mar 28, 2036 · Medium confidence	Cellectis	In force	Jan 4, 2027	Jul 6, 2027	Ends no later than Mar 28, 2036	Medium confidence
US 10,342,829	Multi-Chain Chimeric Antigen Receptor and Uses Thereof Cellectis In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 Term ends May 13, 2033 · Medium confidence	Cellectis	In force	Jan 9, 2027	Jul 9, 2027	Term ends May 13, 2033	Medium confidence
US 10,357,515	Method for Generating Batches of Allogeneic T-Cells with Averaged Potency Cellectis In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Mar 12, 2035 · High confidence	Cellectis	In force	Jan 23, 2027	Jul 23, 2027	Term ends Mar 12, 2035	High confidence
US 10,363,270	Methods for Engineering Allogeneic and Immunosuppressive Resistant T Cell for Immunotherapy Cellectis In force Fee due Jan 30, 2027 Lapses if unpaid Jul 30, 2027 Term ends Sep 2, 2033 · High confidence	Cellectis	In force	Jan 30, 2027	Jul 30, 2027	Term ends Sep 2, 2033	High confidence
US 10,378,007	Methods for Modulating Tal Specificity Cellectis, S.A. In force Fee due Feb 13, 2027 Lapses if unpaid Aug 13, 2027 Term ends May 5, 2035 · High confidence	Cellectis, S.A.	In force	Feb 13, 2027	Aug 13, 2027	Term ends May 5, 2035	High confidence
20 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

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