Also listed on IGT, an earlier holder on the record. The recorded assignments below show how it moved.
Term ended Oct 25, 2026 · High confidence
20-year base term ended Jul 12, 2024
Held by IGT Rhode Island LLC
Filed Jul 12, 2004 as application 10/890,558 · Granted Aug 18, 2009
Base term plus 835 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 25, 2026
2004
2026
Clock starts
Jul 12, 2004
Jul 12, 2004
Term ended
Oct 25, 2026
Oct 25, 2026
Granted
Aug 18, 2009
Aug 18, 2009
base term
patent term adjustment
after the term ends
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
835
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.
41
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 835 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Jul 12, 2004, when this application, 10/890,558, was filed | Jul 12, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +835 days, USPTO patent term adjustment record | Oct 25, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 25, 2026 | High confidence |
This family
| US 7,841,932 | Term ended Aug 2026 | Aug 2026 |
| US 7,901,279 | Term ended Jul 2025 | Jul 2025 |
| US 7,017,805 | Term ended Jun 2023 | Jun 2023 |
| US 8,128,473 | Term ended Jun 2024 | Jun 2024 |
| US 7,028,907 | Lapsed on the fee record Apr 2018 | Apr 2018 |
| US 7,590,950 | In force Mar 2027 | Mar 2027 |
| US 7,540,413 | Term ended May 2025 | May 2025 |
| US 7,576,733 | this patent Oct 2026 | Oct 2026 |
8 of 41 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 12, 2004 Reel 15781, frame 429 | Tremaine, Laurence; Duckworth, David; Cowes, Kendall; Businger, Kurt | Gtech Rhode Island Corporation | Assignment of Assignor's Interest |
| Sep 21, 2016 Reel 40096, frame 239 | Gtech Rhode Island Corporation | Gtech Rhode Island LLC | Change of Name |
| Sep 21, 2016 Reel 40096, frame 269 | Gtech Rhode Island LLC | IGT Rhode Island LLC | Change of Name |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 835 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2009 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.