Term ends Oct 18, 2031 · High confidence
20-year base term ends Feb 10, 2031
Held by Pantech Corporation
Filed Aug 10, 2012 as application 13/578,531 · Granted Jun 9, 2015
Base term plus 250 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Feb 10, 2011
Feb 10, 2011
Term ends
Oct 18, 2031
Oct 18, 2031
Granted
Jun 9, 2015
Jun 9, 2015
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
250
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.
12
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 250 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 Feb 10, 2011, when application PCT/KR2011/000909, the earliest non-provisional in its chain, was filed (this one was filed Aug 10, 2012) | Feb 10, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +250 days, USPTO patent term adjustment record | Oct 18, 2031 | 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 | Oct 18, 2031 | High confidence |
This family
| US 8,893,052 | In force Jun 2031 | Jun 2031 |
| US 9,054,835 | this patent Oct 2031 | Oct 2031 |
| US 9,063,654 | In force Aug 2033 | Aug 2033 |
| US 9,854,545 | In force Apr 2031 | Apr 2031 |
| Application 15/820,980 | Abandoned not computed | not computed |
| US 11,012,954 | In force Feb 2031 | Feb 2031 |
| US 11,659,503 | In force Feb 2031 | Feb 2031 |
| US 12,764,680 | In force Feb 2031 | Feb 2031 |
8 of 12 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 |
|---|---|---|---|
| Aug 13, 2012 Reel 28776, frame 338 | Kwon, Kibum; Jung, Myungcheul | Pantech Co., Ltd. | Assignment of Assignor's Interest |
| Jul 21, 2016 Reel 39428, frame 268 | Pantech Co., Ltd. | Pantech Inc. | Assignment of Assignor's Interest |
| Mar 27, 2017 Reel 42098, frame 451 | Pantech Inc. | Goldpeak Innovations Inc. | Assignment of Assignor's Interest |
| May 13, 2020 Reel 52657, frame 66 | Goldpeak Innovations Inc. | Pantech Corporation | 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
Oct 2031
Term ends Oct 18, 2031. No further fees fall due before then
Note
The 250 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
149
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.