Collateral for a security interest recorded Jul 3, 2025 (Deutsche Bank AG New York Branch).
Term ends Dec 10, 2030 · High confidence
20-year base term ended Sep 1, 2026
Held by IGT
Filed Sep 1, 2006 as application 11/515,183 · Granted Oct 16, 2012
Base term plus 1561 days of patent term adjustment (USPTO delay)
Today
2006
2030
Clock starts
Sep 1, 2006
Sep 1, 2006
Term ends
Dec 10, 2030
Dec 10, 2030
Granted
Oct 16, 2012
Oct 16, 2012
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,561
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
67
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 1561 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Sep 1, 2006, when this application, 11/515,183, was filed | Sep 1, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1561 days, USPTO patent term adjustment record | Dec 10, 2030 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 10, 2030 | High confidence |
This family
| US 7,993,197 | Lapsed on the fee record Aug 2015 | Aug 2015 |
| US 7,311,605 | Term ended Jan 2023 | Jan 2023 |
| US 7,841,944 | Term ended Aug 2022 | Aug 2022 |
| US 7,946,917 | Term ended Sep 2023 | Sep 2023 |
| Application PCT/US2003/018826 | PCT application no patent term | no patent term |
| Application PCT/US2003/023872 | PCT application no patent term | no patent term |
| Application 10/755,598 | Abandoned not computed | not computed |
| US 7,815,507 | In force Feb 2027 | Feb 2027 |
8 of 67 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Sep 1, 2006 Reel 18272, frame 895 | Nguyen, Binh; Gum, Kevin; Griswold, Chauncey | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2030
Term ends Dec 10, 2030. No further fees fall due before then
Note
The 1561 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
432
later US patents cite this one
That is top 1% of utility patents granted in 2012 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.