Maintenance fees coming due

NCS Multistage Inc.

18 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 25, 2026. Unpaid by Jun 25, 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 10,329,867	Apparatuses and Methods for Enabling Multistage Hydraulic Fracturing NCS Multistage Inc. In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Jul 19, 2037 · High confidence	NCS Multistage Inc.	In force	Dec 25, 2026	Jun 25, 2027	Term ends Jul 19, 2037	High confidence
US 10,344,561	Tools and Methods for Use in Completion of a Wellbore NCS Multistage Inc. In force Fee due Jan 9, 2027 Lapses if unpaid Jul 9, 2027 Term ends Jul 12, 2032 · High confidence	NCS Multistage Inc.	In force	Jan 9, 2027	Jul 9, 2027	Term ends Jul 12, 2032	High confidence
US 11,697,968	Casing Float Tool NCS Multistage Inc. In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 Ends no later than Jun 28, 2033 · Low confidence	NCS Multistage Inc.	In force	Jan 11, 2027	Jul 12, 2027	Ends no later than Jun 28, 2033	Low confidence
US 11,732,559	In Situ Injection or Production via a Well Using Selective Operation of Multi-Valve Assemblies with Choked Configurations NCS Multistage Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Apr 24, 2040 · High confidence	NCS Multistage Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Apr 24, 2040	High confidence
US 9,140,098	Downhole Isolation and Depressurization Tool NCS Multistage, Inc. In force Fee due Mar 22, 2027 Lapses if unpaid Sep 22, 2027 Term ends Dec 10, 2032 · High confidence	NCS Multistage, Inc.	In force	Mar 22, 2027	Sep 22, 2027	Term ends Dec 10, 2032	High confidence
US 10,428,613	Wellbore Characteristic Measurement Assembly NCS Multistage Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Jun 14, 2037 · High confidence	NCS Multistage Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Jun 14, 2037	High confidence
US 10,458,195	Apparatuses and Methods for Locating and Shifting a Downhole Flow Control Member NCS Multistage Inc. In force Fee due Apr 29, 2027 Lapses if unpaid Oct 29, 2027 Term ends May 4, 2037 · High confidence	NCS Multistage Inc.	In force	Apr 29, 2027	Oct 29, 2027	Term ends May 4, 2037	High confidence
US 10,465,445	Casing Float Tool NCS Multistage, Inc. In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends Jun 28, 2033 · High confidence	NCS Multistage, Inc.	In force	May 5, 2027	Nov 5, 2027	Term ends Jun 28, 2033	High confidence
US 11,808,099	Apparatuses and Methods for Locating and Shifting a Downhole Flow Control Member NCS Multistage Inc. In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 Term ends May 4, 2037 · High confidence	NCS Multistage Inc.	In force	May 7, 2027	Nov 8, 2027	Term ends May 4, 2037	High confidence
US 11,821,286	Apparatuses, Systems and Methods for Producing Hydrocarbon Material from a Subterranean Formation NCS Multistage Inc. In force Fee due May 21, 2027 Lapses if unpaid Nov 22, 2027 Term ends Mar 6, 2038 · High confidence	NCS Multistage Inc.	In force	May 21, 2027	Nov 22, 2027	Term ends Mar 6, 2038	High confidence
8 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 18 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.