Term ended Aug 31, 2025 · High confidence
20-year base term ended Aug 25, 2025
USPTO later recorded it as expired for non-payment on Jul 6, 2026.
Held by Dolby International AB
Filed May 30, 2012 as application 13/483,535 · Granted Jun 3, 2014
Base term plus 6 days of patent term adjustment (USPTO delay)
Today
Term ended Aug 31, 2025
2005
2026
Clock starts
Aug 25, 2005
Aug 25, 2005
Term ended
Aug 31, 2025
Aug 31, 2025
Granted
Jun 3, 2014
Jun 3, 2014
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
6
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,974,422, to Aug 31, 2025. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 6 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 25, 2005, when application 11/213,188, the earliest non-provisional in its chain, was filed (this one was filed May 30, 2012) | Aug 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +6 days, USPTO patent term adjustment record | Aug 31, 2025 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,974,422) | resolves to Aug 31, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Jul 6, 2026, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Aug 31, 2025 | High confidence |
This family
| US 7,974,422 | In force Sep 2029 | Sep 2029 |
| US 8,594,319 | Term ended Dec 2025 | Dec 2025 |
| US 8,744,067 | this patent Aug 2025 | Aug 2025 |
| US 8,897,466 | Term ended Aug 2025 | Aug 2025 |
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 |
|---|---|---|---|
| Jun 11, 2012 Reel 28354, frame 305 | TP Lab, Inc. | Eighth Nerve Inc. | Assignment of Assignor's Interest |
| Jun 11, 2012 Reel 28354, frame 394 | Eighth Nerve Inc. | Dolby International AB | 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 6 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,974,422, ends no earlier than this term, so it caps nothing.
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2014 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.