Term ends Aug 16, 2027 · High confidence
20-year base term ends Aug 16, 2027
Filed Aug 16, 2007 as application 11/839,883 · Granted Oct 27, 2009
Base term, 20 years from filing
Today
2007
2027
Clock starts
Aug 16, 2007
Aug 16, 2007
Term ends
Aug 16, 2027
Aug 16, 2027
Granted
Oct 27, 2009
Oct 27, 2009
base term
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.
This patent's term is its 20-year base term, with no adjustment for 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 Aug 16, 2007, when this application, 11/839,883, was filed | Aug 16, 2027 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Aug 16, 2027 | High confidence |
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 |
|---|---|---|---|
| Oct 11, 2007 Reel 19948, frame 988 | Nireki, Takao | Aruze Corp.; Seta Corp. | Assignment of Assignor's Interest |
| Oct 11, 2007 reel/frame not recorded | Nireki, Takao | Aruze Corp. | Assignment of Assignor's Interest |
| Oct 11, 2007 reel/frame not recorded | Nireki, Takao | Seta Corp. | Assignment of Assignor's Interest |
| Oct 23, 2007 Reel 19999, frame 895 | Nireki, Takao | Aruze Corp.; Seta Corp. | Corrective Assignment to Correct the Assignor's Execution Date Previously Recorded on Reel 019948 Frame 0988. Assignor(S) Hereby Confirms the Assignment. |
| Oct 23, 2007 reel/frame not recorded | Nireki, Takao | Aruze Corp. | Corrective Assignment to Correct the Assignor's Execution Date Previously Recorded on Reel 019948 Frame 0988. Assignor(S) Hereby Confirms the Assignment. |
| Oct 23, 2007 reel/frame not recorded | Nireki, Takao | Seta Corp. | Corrective Assignment to Correct the Assignor's Execution Date Previously Recorded on Reel 019948 Frame 0988. Assignor(S) Hereby Confirms the Assignment. |
| Jul 21, 2010 Reel 24719, frame 798 | Seta Corporation | Aruze Corporation | Assignment of Assignor's Interest |
| Jul 26, 2010 Reel 24766, frame 576 | Aruze Corporation | Universal Entertainment Corporation | 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
Aug 2027
Term ends Aug 16, 2027. No further fees fall due before then
Citations
11
later US patents cite this one
That is above 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.