Term ends Nov 18, 2035 · High confidence
20-year base term ends Aug 31, 2035
Filed Aug 31, 2015 as application 14/840,489 · Granted Apr 11, 2017
Base term plus 79 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Aug 31, 2015
Aug 31, 2015
Term ends
Nov 18, 2035
Nov 18, 2035
Granted
Apr 11, 2017
Apr 11, 2017
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
79
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 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.
21
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 79 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are 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 Aug 31, 2015, when this application, 14/840,489, was filed | Aug 31, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +79 days, USPTO patent term adjustment record | Nov 18, 2035 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 18, 2035 | High confidence |
This family
| US 9,606,559 | In force Aug 2035 | Aug 2035 |
| US 9,621,043 | this patent Nov 2035 | Nov 2035 |
| US 10,070,220 | In force Oct 2035 | Oct 2035 |
| US 9,755,517 | In force Dec 2035 | Dec 2035 |
| US 10,250,128 | In force Mar 2037 | Mar 2037 |
| US 10,205,385 | In force May 2036 | May 2036 |
| US 9,948,185 | In force Jul 2036 | Jul 2036 |
| US 10,170,986 | In force Jun 2036 | Jun 2036 |
8 of 21 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 |
|---|---|---|---|
| Oct 21, 2015 Reel 36844, frame 6 | Kimura, Takashi; Ohyama, Soichiro; Tanimoto, Susumu | Dialog Semiconductor (UK) Limited | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2035
Term ends Nov 18, 2035. Maintenance fees still fall due before then
Note
The 79 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2017 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.