Lapsed Mar 29, 2026 on the fee record · High confidence
20-year base term ends Nov 10, 2026
First maintenance fee unpaid; grace period ended.
Nov 10, 2006
Mar 29, 2026
Mar 29, 2022
Nov 10, 2026
Its term would have run to Nov 10, 2026: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. Confidence: High. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 10, 2006, when application 11/598,260, the earliest non-provisional in its chain, was filed (this one was filed Apr 18, 2019) | Nov 10, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,269,209, US 8,764,566, US 9,767,643) | resolves to Nov 10, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | lapsed Mar 29, 2026 | High confidence |
| Computed term end | The steps above, in order | Mar 29, 2026 | High confidence |
This family
| US 8,764,566 | In force Jul 2028 | Jul 2028 |
| Application PCT/US2007/004873 | PCT application no patent term | no patent term |
| US 9,767,643 | In force Aug 2027 | Aug 2027 |
| US 10,269,209 | In force Nov 2026 | Nov 2026 |
| US 11,288,918 | this patent Mar 2026 | Mar 2026 |
| US 11,620,871 | Term ended Nov 2026 | Nov 2026 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Apr 23, 2019 Reel 48970, frame 890 | Miltenberger, Paul Douglas; Sheth, Kaushal; Fissell, Ryan Michael; Tan, Carmen Atienza; Bryson, Andy O.; Devaraj, Shanmugapriyan; Cheng, Theodore Yuchiang | IGT | Assignment of Assignor's Interest |
| Jul 3, 2025 Reel 71817, frame 394 | IGT | Deutsche Bank AG New York Branch, as Collateral Agent | Security Agreement |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
A terminal disclaimer resolved from the filed document, referencing US 10,269,209, US 8,764,566, US 9,767,643, ends no earlier than this term, so it caps nothing.