Maintenance fees coming due
7 maintenance fees come due in the 12 months from Nov 14, 2026, the next on May 21, 2027. Unpaid by Nov 22, 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 11,820,016 | System and Method for Autonomously Scanning and Processing a Compliant Workpiece In force Fee due May 21, 2027 Lapses if unpaid Nov 22, 2027 · High confidence | Graymatter Robotics, Inc. | In force | May 21, 2027 | Nov 22, 2027 | High confidence | |
| US 11,820,017 | Methods for Tracking and Replacement of a Sanding Pad In force Fee due May 21, 2027 Lapses if unpaid Nov 22, 2027 · High confidence | Graymatter Robotics Inc. | In force | May 21, 2027 | Nov 22, 2027 | High confidence | |
| US 11,820,018 | Method for Autonomously Scanning, Processing, and Creating a Digital Twin of a Workpiece In force Fee due May 21, 2027 Lapses if unpaid Nov 22, 2027 · High confidence | Graymatter Robotics Inc. | In force | May 21, 2027 | Nov 22, 2027 | High confidence | |
| US 11,883,961 | Method for Autonomously Increasing Dimensional Accuracy of a Workpiece via Three-Dimensional Sanding In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 · Medium confidence | Graymatter Robotics Inc. | In force | Jul 30, 2027 | Jan 31, 2028 | Medium confidence | |
| US 11,897,136 | System and Method for Autonomously Scanning and Surface Finishing a Part In force Fee due Aug 13, 2027 Lapses if unpaid Feb 14, 2028 · Medium confidence | Graymatter Robotics Inc. | In force | Aug 13, 2027 | Feb 14, 2028 | Medium confidence | |
| US 11,938,632 | Method for Autonomously Detecting and Repairing Defects in a Workpiece in Surface Finishing Applications In force Fee due Sep 26, 2027 Lapses if unpaid Mar 27, 2028 · High confidence | Graymatter Robotics Inc. | In force | Sep 26, 2027 | Mar 27, 2028 | High confidence | |
| US 11,975,453 | Method for Selective, Autonomous Processing of Regions of a Workpiece via Three-Dimensional Sanding In force Fee due Nov 7, 2027 Lapses if unpaid May 8, 2028 · High confidence | Graymatter Robotics Inc. | In force | Nov 7, 2027 | May 8, 2028 | High confidence |
7 of 7 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.