Term ends Mar 30, 2030 · High confidence
20-year base term ends Nov 25, 2029
Held by OKI Semiconductor Co., Ltd.
Filed Nov 25, 2009 as application 12/625,816 · Granted Jul 22, 2014
Base term plus 125 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Nov 25, 2009
Nov 25, 2009
Term ends
Mar 30, 2030
Mar 30, 2030
Granted
Jul 22, 2014
Jul 22, 2014
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
125
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 125 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 25, 2009, when this application, 12/625,816, was filed | Nov 25, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +125 days, USPTO patent term adjustment record | Mar 30, 2030 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 30, 2030 | High confidence |
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 |
|---|---|---|---|
| Nov 25, 2009 Reel 23570, frame 295 | Im, Dong-hyun; An, Hyeongeun; Cho, Sunglae; Kim, Ik Soo | OKI Semiconductor Co., Ltd. | Assignment of Assignor's Interest |
| Feb 28, 2014 Reel 32368, frame 476 | Im, Dong-hyun; An, Hyeonggeun; Cho, Sunglee; Kim, Ik Soo | Samsung Electronics Co., Ltd. | Corrective Assignment to Correct the Name and Address of the Assignee Previously Recorded on Reel 023570 Frame 0295. Assignor(S) Hereby Confirms the Assignee: Samsung Electronics Co., LTD. 416, Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do 442-742, Republic of Korea. |
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
Mar 2030
Term ends Mar 30, 2030. No further fees fall due before then
Note
The 125 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 above the median of utility patents granted in 2014 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.