Term ends Dec 27, 2029 · High confidence
20-year base term ends Feb 19, 2029
Held by Activision Publishing, Inc.
Filed Feb 19, 2009 as application 12/389,073 · Granted Apr 10, 2012
Base term plus 311 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Feb 19, 2009
Feb 19, 2009
Term ends
Dec 27, 2029
Dec 27, 2029
Granted
Apr 10, 2012
Apr 10, 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
311
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.
4
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 311 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 Feb 19, 2009, when this application, 12/389,073, was filed | Feb 19, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +311 days, USPTO patent term adjustment record | Dec 27, 2029 | 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 27, 2029 | High confidence |
This family
| US 8,156,184 | this patent Dec 2029 | Dec 2029 |
| US 8,554,841 | In force Feb 2029 | Feb 2029 |
| US 9,583,109 | In force Feb 2029 | Feb 2029 |
| US 10,001,970 | In force Feb 2029 | Feb 2029 |
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 5, 2009 Reel 22637, frame 449 | Kurata, Gakuto; Nagano, Tohru; Tatsubori, Michiaki | International Business Machines Corporation | Assignment of Assignor's Interest |
| Feb 28, 2013 Reel 29900, frame 285 | International Business Machines Corporation | Activision Publishing, Inc. | Assignment of Assignor's Interest |
| Feb 11, 2014 Reel 32240, frame 257 | Activision Publishing, Inc. | Bank Of America, N.a. | Security Agreement |
| Oct 17, 2016 Reel 40381, frame 487 | Bank Of America, N.a. | Activision Blizzard Inc.; Activision Publishing, Inc.; Activision Entertainment Holdings, Inc.; Blizzard Entertainment, Inc. | Release of Security Interest |
| Oct 17, 2016 reel/frame not recorded | Bank Of America, N.a. | Activision Blizzard Inc. | Release of Security Interest |
| Oct 17, 2016 reel/frame not recorded | Bank Of America, N.a. | Activision Publishing, Inc. | Release of Security Interest |
| Oct 17, 2016 reel/frame not recorded | Bank Of America, N.a. | Activision Entertainment Holdings, Inc. | Release of Security Interest |
| Oct 17, 2016 reel/frame not recorded | Bank Of America, N.a. | Blizzard Entertainment, Inc. | Release of Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2029
Term ends Dec 27, 2029. No further fees fall due before then
Note
The 311 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
155
later US patents cite this one
That is top 5% 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.