Also listed on International Business Machines Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 5, 2026 · High confidence
20-year base term ended Jul 29, 2024
Held by Activision Publishing, Inc.
Filed Jul 29, 2004 as application 10/902,197 · Granted Apr 13, 2010
Base term plus 859 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Jul 29, 2004
Jul 29, 2004
Term ends
Dec 5, 2026
Dec 5, 2026
Granted
Apr 13, 2010
Apr 13, 2010
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
859
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.
This patent's term runs 859 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 Jul 29, 2004, when this application, 10/902,197, was filed | Jul 29, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +859 days, USPTO patent term adjustment record | Dec 5, 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 | In force | High confidence |
| Computed term end | The steps above, in order | Dec 5, 2026 | 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 |
|---|---|---|---|
| Jul 29, 2004 Reel 15645, frame 842 | Srivastava, Biplav | 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 2026
Term ends Dec 5, 2026. No further fees fall due before then
Note
The 859 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
168
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.