Term ended Dec 19, 2021 · High confidence
20-year base term ended Dec 19, 2021
Held by Bot M8 LLC
Filed Dec 19, 2001 as application 10/025,319 · Granted May 27, 2008
Base term, 20 years from filing
Today
Term ended Dec 19, 2021
2001
2026
Clock starts
Dec 19, 2001
Dec 19, 2001
Term ended
Dec 19, 2021
Dec 19, 2021
Granted
May 27, 2008
May 27, 2008
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
6
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 is its 20-year base term, with no adjustment for 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 Dec 19, 2001, when this application, 10/025,319, was filed | Dec 19, 2021 | 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 | 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 | Dec 19, 2021 | High confidence |
This family
| US 7,377,852 | this patent Dec 2021 | Dec 2021 |
| US 7,258,612 | Term ended Jun 2024 | Jun 2024 |
| US 7,338,363 | Term ended Jun 2025 | Jun 2025 |
| US 7,497,777 | In force Feb 2027 | Feb 2027 |
| US 7,664,988 | Term ended Oct 2026 | Oct 2026 |
| US 8,095,990 | Lapsed on the fee record Jan 2024 | Jan 2024 |
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 |
|---|---|---|---|
| Dec 19, 2001 Reel 12405, frame 695 | Nagashima, Kouzo | Aruze Co., Ltd. | Assignment of Assignor's Interest |
| Dec 23, 2009 Reel 23691, frame 877 | Aruze Corporation (Aruze Kabushiki Kaisha) | Universal Entertainment Corporation | Change of Name |
| Dec 6, 2016 Reel 40823, frame 741 | Universal Entertainment Corporation | Bot M8 LLC | Patent Purchase 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.
Citations
9
later US patents cite this one
That is below the median of utility patents granted in 2008 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.