Collateral for a security interest recorded Jul 21, 2026 (JPMorgan Chase Bank, N.A.).
Term ends May 15, 2037 · High confidence
20-year base term ends Nov 2, 2036
Held by Adtran, Inc.
Filed Apr 20, 2017 as application 15/492,590 · Granted Aug 27, 2019
Base term plus 194 days of patent term adjustment (USPTO delay)
Today
2016
2037
Clock starts
Nov 2, 2016
Nov 2, 2016
Term ends
May 15, 2037
May 15, 2037
Granted
Aug 27, 2019
Aug 27, 2019
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
194
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
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 194 days past its 20-year base term on prosecution delay. 1 of 3 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 2, 2016, when application 15/341,677, the earliest non-provisional in its chain, was filed (this one was filed Apr 20, 2017) | Nov 2, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +194 days, USPTO patent term adjustment record | May 15, 2037 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 15, 2037 | High confidence |
This family
| US 9,924,248 | In force Nov 2036 | Nov 2036 |
| Application PCT/US2016/063870 | PCT application no patent term | no patent term |
| Application PCT/US2017/028623 | PCT application no patent term | no patent term |
| US 10,397,674 | this patent May 2037 | May 2037 |
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 27, 2017 Reel 42828, frame 768 | Detwiler, Thomas; Goodson, Richard Lee | Adtran, Inc. | Assignment of Assignor's Interest |
| Jul 18, 2022 Reel 60692, frame 249 | Adtran, Inc. | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Jul 21, 2026 Reel 76028, frame 412 | Adtran, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Jul 22, 2026 Reel 76054, frame 608 | Wells Fargo Bank, National Association | Adtran, Inc. | Notice of Release of Security Interest in Patents Recorded at Reel 060692, Frame 0249 |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2037
Term ends May 15, 2037. Maintenance fees still fall due before then
Note
The 194 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
later US patents cite this one
That is top 25% of utility patents granted in 2019 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.