Term ends Aug 23, 2031 · High confidence
20-year base term ends Jul 7, 2031
Held by Kakao Corp.
Filed Jul 7, 2011 as application 13/178,376 · Granted Nov 19, 2013
Base term plus 47 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Jul 7, 2011
Jul 7, 2011
Term ends
Aug 23, 2031
Aug 23, 2031
Granted
Nov 19, 2013
Nov 19, 2013
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
47
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.
2
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 47 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 Jul 7, 2011, when this application, 13/178,376, was filed | Jul 7, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +47 days, USPTO patent term adjustment record | Aug 23, 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 | Aug 23, 2031 | High confidence |
This family
| US 8,589,491 | this patent Aug 2031 | Aug 2031 |
| US 9,270,768 | In force Jul 2031 | Jul 2031 |
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 |
|---|---|---|---|
| Sep 26, 2011 Reel 26967, frame 590 | Morin, David B.; Fanning, Shawn D.; Mierau, Dustin R.; Dofter, Daniel S.; Matteson, Matthew M.; Lewandowksi, Mark; Brennan, Mary Ann; Trinh, Daniel; Paine, Mallory | Path, Inc. | Assignment of Assignor's Interest |
| Jun 3, 2015 Reel 35777, frame 50 | Path, Inc. | Daum Kakao Corp. | Security Interest |
| Jun 17, 2015 Reel 35929, frame 724 | Daum Kakao Corp. | Path, Inc. | Release of Security Interest |
| Jan 15, 2016 Reel 37503, frame 282 | Path, Inc. | Daum Kakao Singapore Corp. | Assignment of Assignor's Interest |
| Jan 15, 2016 Reel 37544, frame 106 | Daum Kakao Singapore Corp. | Path Mobile Inc. Pte. Ltd. | Change of Name |
| Jun 18, 2020 Reel 52971, frame 212 | Path Mobile Inc. Pte. Ltd. | Kakao Corp. | 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
Aug 2031
Term ends Aug 23, 2031. No further fees fall due before then
Note
The 47 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
85
later US patents cite this one
That is top 10% of utility patents granted in 2013 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.