Term ends Sep 6, 2032 · High confidence
20-year base term ends Jul 25, 2032
Held by Kakao Corp.
Filed Sep 12, 2012 as application 13/611,997 · Granted Apr 21, 2015
Base term plus 43 days of patent term adjustment (USPTO delay)
Today
2012
2032
Clock starts
Jul 25, 2012
Jul 25, 2012
Term ends
Sep 6, 2032
Sep 6, 2032
Granted
Apr 21, 2015
Apr 21, 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
43
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.
4
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 43 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 25, 2012, when applications 13/557,912 and 13/557,926, the earliest non-provisional applications in its chain, were filed (this one was filed Sep 12, 2012) | Jul 25, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +43 days, USPTO patent term adjustment record | Sep 6, 2032 | 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 | Sep 6, 2032 | High confidence |
This family
| US 9,159,053 | In force Mar 2034 | Mar 2034 |
| US 8,898,157 | In force Jul 2032 | Jul 2032 |
| US 10,460,290 | In force Jul 2032 | Jul 2032 |
| US 9,015,155 | this patent 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 |
|---|---|---|---|
| Nov 27, 2012 Reel 29355, frame 103 | Levinson, Stuart J.; Crane, Riley W.; Johnson, Sean; Buschmann, Brian F.; Byrum, James M.; Balasubramanian, Santhosh; Zorn, Nathan, MR. | Talkto, Inc. | Assignment of Assignor's Interest |
| Jan 14, 2015 Reel 34706, frame 267 | Talkto, Inc. | Path, Inc. | Assignment of Assignor's 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
Sep 2032
Term ends Sep 6, 2032. No further fees fall due before then
Note
The 43 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
61
later US patents cite this one
That is top 10% 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.