Lapsed Dec 27, 2024 on the fee record · Low confidence
20-year base term ends Nov 20, 2034
Second maintenance fee unpaid; grace period ended.
Held by AT&T Intellectual Property I, LP
Filed Mar 15, 2016 as application 15/070,064 · Granted Dec 27, 2016
Base term, 20 years from filing
Today
Lapsed Dec 27, 2024
2014
2034
Clock starts
Nov 20, 2014
Nov 20, 2014
No longer in force
Dec 27, 2024
Dec 27, 2024
Granted
Dec 27, 2016
Dec 27, 2016
Term would have run to
Nov 20, 2034
Nov 20, 2034
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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
1 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.
41
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Nov 20, 2034: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Low. 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 Nov 20, 2014, when application 14/548,411, the earliest non-provisional in its chain, was filed (this one was filed Mar 15, 2016); a parent in its chain could not be resolved (the next row) | Nov 20, 2034 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Dec 27, 2024 | High confidence |
| Computed term end | The steps above, in order | Dec 27, 2024 | Low confidence |
This family
| US 9,680,670 | Lapsed on the fee record Jun 2025 | Jun 2025 |
| US 9,544,006 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 10,009,067 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| US 9,742,462 | Lapsed on the fee record Aug 2025 | Aug 2025 |
| US 9,997,819 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| Application PCT/US2015/056632 | PCT application no patent term | no patent term |
| Application PCT/US2015/056626 | PCT application no patent term | no patent term |
| US 9,531,427 | this patent Dec 2024 | Dec 2024 |
8 of 41 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Mar 17, 2016 Reel 38008, frame 19 | Henry, Paul Shala; Bennett, Robert; Gerszberg, Irwin; Barzegar, Farhad; Barnickel, Donald J.; Willis, Thomas M., III | AT&T Intellectual Property I, LP | 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.
What's changing
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 27, 2024. We will not guess the cap.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.