Maintenance fees coming due

SPX Flow

11 maintenance fees come due in the 12 months from Nov 14, 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 10,315,171	Mixer Assembly Apparatus and Method SPX Flow, Inc. In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Aug 5, 2033 · High confidence	SPX Flow, Inc.	In force	Dec 11, 2026	Jun 11, 2027	Term ends Aug 5, 2033	High confidence
US 9,101,887	Mixer Attachment Assembly Apparatus and Method SPX Flow In force Fee due Feb 11, 2027 Lapses if unpaid Aug 11, 2027 Term ends Apr 20, 2033 · High confidence	SPX Flow	In force	Feb 11, 2027	Aug 11, 2027	Term ends Apr 20, 2033	High confidence
US 10,385,894	Split Ring Attaching and Restraining Device and Method SPX Flow, Inc. In force Fee due Feb 20, 2027 Lapses if unpaid Aug 20, 2027 Term ends Jan 19, 2037 · High confidence	SPX Flow, Inc.	In force	Feb 20, 2027	Aug 20, 2027	Term ends Jan 19, 2037	High confidence
US 11,732,980	Port Connection for a Heat Exchanger SPX Flow, Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Sep 30, 2035 · High confidence	SPX Flow, Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Sep 30, 2035	High confidence
US 10,508,727	Drive System and Drive Sub-Assembly for Driving a Shaft SPX Flow, Inc. In force Fee due Jun 17, 2027 Lapses if unpaid Dec 17, 2027 Term ends Dec 5, 2037 · High confidence	SPX Flow, Inc.	In force	Jun 17, 2027	Dec 17, 2027	Term ends Dec 5, 2037	High confidence
US 11,885,574	Hygienic Heat Exchanger SPX Flow Technology Danmark A/S In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 Term ends Mar 13, 2036 · High confidence	SPX Flow Technology Danmark A/S	In force	Jul 30, 2027	Jan 31, 2028	Term ends Mar 13, 2036	High confidence
US 9,289,733	Mixing Apparatus with Stationary Shaft SPX Flow In force Fee due Sep 22, 2027 Lapses if unpaid Mar 22, 2028 Term ends Jan 25, 2033 · High confidence	SPX Flow	In force	Sep 22, 2027	Mar 22, 2028	Term ends Jan 25, 2033	High confidence
US 10,618,018	Low Wear Radial Flow Impeller Device and System SPX Flow, Inc. In force Fee due Oct 14, 2027 Lapses if unpaid Apr 14, 2028 Term ends Nov 8, 2037 · High confidence	SPX Flow, Inc.	In force	Oct 14, 2027	Apr 14, 2028	Term ends Nov 8, 2037	High confidence
US 10,627,169	Hygienic Heat Exchanger SPX Flow Technology Danmark A/S In force Fee due Oct 21, 2027 Lapses if unpaid Apr 21, 2028 Term ends Aug 26, 2035 · High confidence	SPX Flow Technology Danmark A/S	In force	Oct 21, 2027	Apr 21, 2028	Term ends Aug 26, 2035	High confidence
US 9,327,256	Impeller Assembly Apparatus and Method SPX Flow In force Fee due Nov 3, 2027 Lapses if unpaid May 3, 2028 Term ends Apr 20, 2033 · High confidence	SPX Flow	In force	Nov 3, 2027	May 3, 2028	Term ends Apr 20, 2033	High confidence
1 more maintenance fee coming due in the 12 months from Nov 14, 2026 · Pro

10 of 11 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.