Maintenance fees coming due

Redzone Robotics, Inc.

9 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 4, 2026. Unpaid by Jun 4, 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 10,309,949	Method and Apparatus for Robotic, In-Pipe Water Quality Testing Redzone Robotics, Inc. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Mar 15, 2037 · High confidence	Redzone Robotics, Inc.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Mar 15, 2037	High confidence
US 11,674,943	Method and Apparatus for Robotic, In-Pipe Water Quality Testing RedZone Robotics, Inc. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Sep 28, 2036 · High confidence	RedZone Robotics, Inc.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Sep 28, 2036	High confidence
US 11,719,853	Underground Infrastructure Sensing Using Unmanned Aerial Vehicle (UAV) Redzone Robotics, Inc. In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 Term ends Nov 8, 2038 · High confidence	Redzone Robotics, Inc.	In force	Feb 8, 2027	Aug 9, 2027	Term ends Nov 8, 2038	High confidence
US 9,156,105	Managing Infrastructure Data Redzone Robotics, Inc. In force Fee due Apr 13, 2027 Lapses if unpaid Oct 13, 2027 Term ends Jun 29, 2033 · High confidence	Redzone Robotics, Inc.	In force	Apr 13, 2027	Oct 13, 2027	Term ends Jun 29, 2033	High confidence
US 9,183,527	Analyzing Infrastructure Data Redzone Robotics, Inc. In force Fee due May 10, 2027 Lapses if unpaid Nov 10, 2027 Term ends Feb 7, 2033 · High confidence	Redzone Robotics, Inc.	In force	May 10, 2027	Nov 10, 2027	Term ends Feb 7, 2033	High confidence
US 11,867,641	Image Processing Techniques for Multi-Sensor Inspection of Pipe Interiors Redzone Robotics, Inc. In force Fee due Jul 9, 2027 Lapses if unpaid Jan 10, 2028 Term ends Jul 31, 2039 · High confidence	Redzone Robotics, Inc.	In force	Jul 9, 2027	Jan 10, 2028	Term ends Jul 31, 2039	High confidence
US 11,908,048	Managing Infrastructure Data Redzone Robotics Inc. In force Fee due Aug 20, 2027 Lapses if unpaid Feb 22, 2028 Term ends Oct 17, 2032 · High confidence	Redzone Robotics Inc.	In force	Aug 20, 2027	Feb 22, 2028	Term ends Oct 17, 2032	High confidence
US 11,949,989	Multiple Camera Imager for Inspection of Large Diameter Pipes, Chambers or Tunnels Redzone Robotics, Inc. In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 Term ends Sep 28, 2038 · High confidence	Redzone Robotics, Inc.	In force	Oct 2, 2027	Apr 3, 2028	Term ends Sep 28, 2038	High confidence
US 10,649,450	Augmented Reality (AR) Display of Pipe Inspection Data Redzone Robotics, Inc. In force Fee due Nov 12, 2027 Lapses if unpaid May 12, 2028 Term ends Jan 31, 2039 · High confidence	Redzone Robotics, Inc.	In force	Nov 12, 2027	May 12, 2028	Term ends Jan 31, 2039	High confidence

9 of 9 patents shown. Soonest fee due date first, then patent number.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.