Term ended Jun 5, 2024 · Medium confidence
20-year base term ended Dec 23, 2023
Why Medium: A parent in the chain could not be resolved.
Held by Marlow Technologies, LLC
Filed Apr 4, 2012 as application 13/439,057 · Granted Jan 27, 2015
Base term plus 165 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 5, 2024
2003
2026
Clock starts
Dec 23, 2003
Dec 23, 2003
Term ended
Jun 5, 2024
Jun 5, 2024
Granted
Jan 27, 2015
Jan 27, 2015
base term
patent term adjustment
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
165
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
5
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 165 days past its 20-year base term on prosecution delay. 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 23, 2003, when application 10/743,430, the earliest non-provisional in its chain, was filed (this one was filed Apr 4, 2012); a parent in its chain could not be resolved (the next row) | Dec 23, 2023 | 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 | +165 days, USPTO patent term adjustment record | Jun 5, 2024 | 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 | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jun 5, 2024 | Medium confidence |
This family
| US 7,657,622 | Term ended Nov 2026 | Nov 2026 |
| US 8,176,172 | Term ended Dec 2023 | Dec 2023 |
| US 8,943,193 | this patent Jun 2024 | Jun 2024 |
| US 9,385,932 | Term ended Dec 2023 | Dec 2023 |
| US 10,063,442 | Term ended 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 |
|---|---|---|---|
| May 3, 2012 Reel 28148, frame 581 | Douglis, Frederick; Shur, David H.; Sommer, Joseph M.; Van Der Merwe, Jacobus E. | AT&T Corp. | Assignment of Assignor's Interest |
| Jul 23, 2014 Reel 33373, frame 613 | AT&T Corp. | AT&T Properties, LLC | Assignment of Assignor's Interest |
| Jul 23, 2014 Reel 33373, frame 792 | AT&T Properties, LLC | AT&T Intellectual Property II, L.P. | Assignment of Assignor's Interest |
| Dec 9, 2014 Reel 34565, frame 71 | AT&T Intellectual Property II, L.P. | Marlow Technologies, LLC | 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
The 165 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2015 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.