Maintenance fees coming due

IGT

447 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 19, 2026. Unpaid by May 19, 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 9,033,785	Methods and Systems for Providing Accessory Devices Usable to Facilitate Remotely Viewable Wagering Game Outcomes IGT In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Jun 11, 2031 · High confidence	IGT	In force	Nov 19, 2026	May 19, 2027	Term ends Jun 11, 2031	High confidence
US 10,297,108	Gaming System and Method Providing a Collection Game IGT In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Feb 3, 2028 · High confidence	IGT	In force	Nov 21, 2026	May 21, 2027	Term ends Feb 3, 2028	High confidence
US 10,304,279	Gaming System, Gaming Device and Gaming Method Providing Stacking Symbols and Convertible Reels IGT In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Nov 9, 2027 · High confidence	IGT	In force	Nov 28, 2026	May 28, 2027	Term ends Nov 9, 2027	High confidence
US 9,047,733	Gaming System and Method for Providing Multiple Level Progressive Awards with Increased Odds of Winning Higher Level Progressive Awards IGT In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Jun 30, 2032 · High confidence	IGT	In force	Dec 2, 2026	Jun 2, 2027	Term ends Jun 30, 2032	High confidence
US 10,311,667	Gaming System Volatility Marker and Gaming System Having a Volatility Marker IGT In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Dec 30, 2035 · High confidence	IGT	In force	Dec 4, 2026	Jun 4, 2027	Term ends Dec 30, 2035	High confidence
US 10,311,674	Gaming System and Method Having Progressive Awards with Meter Increase Events IGT In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Ends no later than Aug 8, 2029 · Medium confidence	IGT	In force	Dec 4, 2026	Jun 4, 2027	Ends no later than Aug 8, 2029	Medium confidence
US 11,670,130	Dynamic Wagering Features Based on Number of Active Players IGT In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Jul 27, 2041 · High confidence	IGT	In force	Dec 6, 2026	Jun 7, 2027	Term ends Jul 27, 2041	High confidence
US 11,670,139	Gaming System and Method Providing Multi-Function Symbol Accumulation Sequences IGT In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Feb 26, 2040 · High confidence	IGT	In force	Dec 6, 2026	Jun 7, 2027	Term ends Feb 26, 2040	High confidence
US 9,053,601	Progressive Gaming Device and Method of Use IGT In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Dec 7, 2032 · High confidence	IGT	In force	Dec 9, 2026	Jun 9, 2027	Term ends Dec 7, 2032	High confidence
US 9,053,606	Gaming System and Method for Providing Enhanced Wagering Opportunities IGT In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Jan 7, 2029 · High confidence	IGT	In force	Dec 9, 2026	Jun 9, 2027	Term ends Jan 7, 2029	High confidence
437 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 447 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.