Also listed on BellSouth Intellectual Property Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 12, 2026 · High confidence
20-year base term ended Nov 1, 2026
Filed May 24, 2019 as application 16/422,442 · Granted Jun 7, 2022
Base term plus 41 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Nov 1, 2006
Nov 1, 2006
Term ends
Dec 12, 2026
Dec 12, 2026
Granted
Jun 7, 2022
Jun 7, 2022
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
41
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 10,303,858, to Dec 12, 2026. The term already ends on or before that date, so the cap shortened nothing.
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 41 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. 1 of 1 maintenance fees is paid so far. 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 Nov 1, 2006, when application 11/555,536, the earliest non-provisional in its chain, was filed (this one was filed May 24, 2019) | Nov 1, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +41 days, USPTO patent term adjustment record | Dec 12, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,303,858) | resolves to Dec 12, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 12, 2026 | High confidence |
This family
| US 8,126,128 | Lapsed on the fee record Feb 2024 | Feb 2024 |
| US 9,124,691 | In force Mar 2028 | Mar 2028 |
| US 10,303,858 | In force Nov 2027 | Nov 2027 |
| US 11,354,385 | this patent Dec 2026 | Dec 2026 |
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 3, 2019 Reel 49342, frame 448 | Hicks, John Alson, III; O'neil, Douglas R. | BellSouth Intellectual Property Corporation | Assignment of Assignor's Interest |
| Jun 3, 2019 Reel 49342, frame 816 | BellSouth Intellectual Property Corporation | AT&T Intellectual Property, Inc. | Change of Name |
| Jun 3, 2019 Reel 49342, frame 921 | AT&T Intellectual Property, Inc. | AT&T BLS Intellectual Property, Inc. | Change of Name |
| Jun 3, 2019 Reel 49342, frame 967 | AT&T BLS Intellectual Property, Inc. | AT&T Delaware Intellectual Property, Inc. | Change of Name |
| Jun 3, 2019 Reel 49343, frame 7 | AT&T Delaware Intellectual Property, Inc. | AT&T Intellectual Property I, L.P. | 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
Dec 2026
Term ends Dec 12, 2026. No further fees fall due before then
Note
The 41 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 10,303,858, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2022 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.