Maintenance fees coming due

TRX Systems, Inc.

13 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 16, 2027. Unpaid by Jul 16, 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 10,352,707	Collaborative Creation of Indoor Maps TRX Systems, Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends Feb 12, 2034 · High confidence	TRX Systems, Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends Feb 12, 2034	High confidence
US 10,393,542	Methods for Improved Heading Estimation TRX Systems, Inc. In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 Term ends Dec 6, 2033 · High confidence	TRX Systems, Inc.	In force	Feb 27, 2027	Aug 27, 2027	Term ends Dec 6, 2033	High confidence
US 10,393,543	Methods for Improved Heading Estimation TRX Systems, Inc. In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 Term ends Dec 4, 2033 · High confidence	TRX Systems, Inc.	In force	Feb 27, 2027	Aug 27, 2027	Term ends Dec 4, 2033	High confidence
US 10,401,168	Methods Resolving the Elevation of a Tracked Personnel or Assets TRX Systems, Inc. In force Fee due Mar 3, 2027 Lapses if unpaid Sep 3, 2027 Term ends Sep 20, 2033 · High confidence	TRX Systems, Inc.	In force	Mar 3, 2027	Sep 3, 2027	Term ends Sep 20, 2033	High confidence
US 9,146,113	System and Method for Localizing a Trackee at a Location and Mapping the Location Using Transitions TRX Systems, Inc. In force Fee due Mar 29, 2027 Lapses if unpaid Sep 29, 2027 Term ends Mar 28, 2033 · High confidence	TRX Systems, Inc.	In force	Mar 29, 2027	Sep 29, 2027	Term ends Mar 28, 2033	High confidence
US 11,836,857	Methods for Generating and Updating Building Models TRX Systems, Inc. In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 Term ends May 31, 2039 · Medium confidence	TRX Systems, Inc.	In force	Jun 5, 2027	Dec 6, 2027	Term ends May 31, 2039	Medium confidence
US 10,571,270	Fusion of Sensor and Map Data Using Constraint Based Optimization TRX Systems, Inc. In force Fee due Aug 25, 2027 Lapses if unpaid Feb 25, 2028 Term ends Apr 25, 2034 · High confidence	TRX Systems, Inc.	In force	Aug 25, 2027	Feb 25, 2028	Term ends Apr 25, 2034	High confidence
US 10,598,487	Methods Resolving a Location of Tracked Personnel or Assets Based on Elevation TRX Systems, Inc. In force Fee due Sep 24, 2027 Lapses if unpaid Mar 24, 2028 Term ends Jun 12, 2033 · High confidence	TRX Systems, Inc.	In force	Sep 24, 2027	Mar 24, 2028	Term ends Jun 12, 2033	High confidence
US 9,297,658	Wi-Fi Enhanced Tracking Algorithms TRX Systems, Inc. In force Fee due Sep 29, 2027 Lapses if unpaid Mar 29, 2028 Term ends Jun 12, 2033 · High confidence	TRX Systems, Inc.	In force	Sep 29, 2027	Mar 29, 2028	Term ends Jun 12, 2033	High confidence
US 10,612,921	Methods for Resolving a Location of Tracked Personnel or Assets and Refining Path Data TRX Systems, Inc. In force Fee due Oct 7, 2027 Lapses if unpaid Apr 7, 2028 Term ends Jun 12, 2033 · High confidence	TRX Systems, Inc.	In force	Oct 7, 2027	Apr 7, 2028	Term ends Jun 12, 2033	High confidence
3 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 13 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.