Term ends Sep 14, 2032 · Medium confidence
20-year base term ends Sep 14, 2032
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 10,281,810), so the cap could be lower.
Held by Delta Electronics, Inc.
Filed Jan 11, 2017 as application 15/403,995 · Granted Jun 4, 2019
Base term plus 70 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2012
2032
Clock starts
Sep 14, 2012
Sep 14, 2012
Term ends
Sep 14, 2032
Sep 14, 2032
Granted
Jun 4, 2019
Jun 4, 2019
base term
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
70
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,281,810, US 9,024,241.
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.
7
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 70 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 3 maintenance fees is paid so far. 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 Sep 14, 2012, when application 13/617,201, the earliest non-provisional in its chain, was filed (this one was filed Jan 11, 2017) | Sep 14, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +70 days, USPTO patent term adjustment record | Nov 23, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,281,810, US 9,024,241) | capped to Sep 14, 2032 | Medium 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 | Sep 14, 2032 | Medium confidence |
This family
| US 9,024,241 | In force Dec 2032 | Dec 2032 |
| US 9,274,407 | In force Sep 2032 | Sep 2032 |
| US 9,726,335 | In force Oct 2032 | Oct 2032 |
| US 10,310,363 | this patent Sep 2032 | Sep 2032 |
| US 10,281,810 | In force no later than Sep 2032 | no later than Sep 2032 |
| US 10,688,527 | In force Sep 2032 | Sep 2032 |
| US 10,758,937 | In force Sep 2032 | Sep 2032 |
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 |
|---|---|---|---|
| Jan 11, 2017 Reel 41341, frame 147 | Chang, Keh-su; Chou, Yen-i; Chen, Chi; Lu, Chun-hsien | Delta Electronics, Inc. | 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
Sep 2032
Term ends Sep 14, 2032. Maintenance fees still fall due before then
Note
The 70 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,281,810, US 9,024,241.
Citations
1
later US patent cites this one
That is below the median 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.