Term ended Jun 26, 2016 · From the USPTO record
20-year base term ended Oct 12, 2014
Held by IGT
Filed Jun 6, 2001 as application 09/878,111 · Granted Sep 21, 2010
Base term plus 623 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 26, 2016
1994
2026
Clock starts
Oct 12, 1994
Oct 12, 1994
Term ended
Jun 26, 2016
Jun 26, 2016
Granted
Sep 21, 2010
Sep 21, 2010
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
623
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
54
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 623 days past its 20-year base term on prosecution delay. Confidence: Breadth. 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 Oct 12, 1994, when application 08/322,172, the earliest non-provisional in its chain, was filed (this one was filed Jun 6, 2001) | Oct 12, 2014 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +623 days, USPTO patent term adjustment record | Jun 26, 2016 | 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 | 1 of 1 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jun 26, 2016 | From the USPTO record |
This family
| US 7,749,077 | Lapsed on the fee record Jul 2018 | Jul 2018 |
| US 6,431,983 | Term ended no later than Jun 2016 | no later than Jun 2016 |
| US 7,798,899 | this patent Jun 2016 | Jun 2016 |
| Application 60/297,490 | Pending not computed | not computed |
| US 6,832,956 | Lapsed on the fee record Dec 2016 | Dec 2016 |
| US 6,800,030 | Term ended no later than Jun 2016 | no later than Jun 2016 |
| US D488,839 | Term ended Apr 2018 | Apr 2018 |
| US 6,910,964 | Term ended no later than Oct 2014 | no later than Oct 2014 |
8 of 54 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 |
|---|---|---|---|
| May 24, 2006 Reel 17663, frame 341 | Acres Gaming Incorporated | IGT | Assignment of Assignor's Interest |
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 623 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is above the median of utility patents granted in 2010 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.