Term ended Dec 31, 2023 · Medium confidence
20-year base term ended Dec 31, 2023
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,169,492), so the cap could be lower.
USPTO later recorded it as expired for non-payment on Sep 29, 2025.
Held by Turner Broadcasting System, Inc.
Filed Dec 15, 2014 as application 14/570,192 · Granted Aug 22, 2017
Base term plus 142 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Dec 31, 2023
2003
2026
Clock starts
Dec 31, 2003
Dec 31, 2003
Term ended
Dec 31, 2023
Dec 31, 2023
Granted
Aug 22, 2017
Aug 22, 2017
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
142
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,169,492, US 8,913,143.
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.
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 142 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. Confidence: Medium. 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 31, 2003, when application 10/748,123, the earliest non-provisional in its chain, was filed (this one was filed Dec 15, 2014) | Dec 31, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +142 days, USPTO patent term adjustment record | May 21, 2024 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,169,492, US 8,913,143) | capped to Dec 31, 2023 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Sep 29, 2025, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Dec 31, 2023 | Medium confidence |
This family
| US 7,683,937 | In force (reinstated) Aug 2028 | Aug 2028 |
| US 8,169,492 | Term ended no later than Dec 2023 | no later than Dec 2023 |
| US 8,913,143 | Term ended Dec 2023 | Dec 2023 |
| US 9,740,371 | this patent Dec 2023 | Dec 2023 |
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 15, 2014 Reel 34507, frame 382 | Blumenfeld, Steven M. | AOL LLC, a Delaware Limited Liability Company (Formerly Known as America Online, Inc.) | Assignment of Assignor's Interest |
| Dec 15, 2014 Reel 34507, frame 587 | AOL LLC, a Delaware Limited Liability Company (Formerly Known as America Online, Inc.) | Turner Broadcasting System, Inc. | 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 142 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,169,492, US 8,913,143.
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2017 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.