Lapsed Oct 16, 2026 on the fee record · Low confidence
20-year base term ends May 20, 2035
Second maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Vatech Co., Ltd. and Vatech Ewoo Holdings Co., Ltd.
Filed May 5, 2016 as application 15/034,872 · Granted Oct 16, 2018
Base term, 20 years from filing, plus 219 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 16, 2026
2015
2035
Clock starts
May 20, 2015
May 20, 2015
No longer in force
Oct 16, 2026
Oct 16, 2026
Granted
Oct 16, 2018
Oct 16, 2018
Term would have run to
Dec 25, 2035
Dec 25, 2035
base term
patent term adjustment
after the term ends
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
219
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 25, 2035: its 20-year base term plus 219 days of term adjustment for prosecution delay. Confidence: Low. 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 May 20, 2015, when application PCT/KR2015/005035, the earliest non-provisional in its chain, was filed (this one was filed May 5, 2016) | May 20, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +219 days, USPTO patent term adjustment record | Dec 25, 2035 | 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 | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Oct 16, 2026 | Low confidence |
| Computed term end | The steps above, in order | Oct 16, 2026 | Low confidence |
This family
| US 10,098,718 | this patent Oct 2026 | Oct 2026 |
1 of 2 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 |
|---|---|---|---|
| May 5, 2016 Reel 38627, frame 844 | Kim, Yeong Kyun; Moon, An O | Vatech Co., Ltd.; Vatech Ewoo Holdings Co., Ltd. | Assignment of Assignor's Interest |
| May 5, 2016 reel/frame not recorded | Kim, Yeong Kyun; Moon, An O | Vatech Co., Ltd. | Assignment of Assignor's Interest |
| May 5, 2016 reel/frame not recorded | Kim, Yeong Kyun; Moon, An O | Vatech Ewoo Holdings Co., Ltd. | Assignment of Assignor's Interest |
| May 20, 2016 Reel 38771, frame 311 | Kim, Yeong Kyun; Moon, An O | Vatech Co., Ltd.; Vatech Ewoo Holdings Co., Ltd. | Corrective Assignment to Correct the First Assingee Address Previously Recorded on Reel 038627 Frame 0844. Assignor(S) Hereby Confirms the Assignment. |
| May 20, 2016 reel/frame not recorded | Kim, Yeong Kyun; Moon, An O | Vatech Co., Ltd. | Corrective Assignment to Correct the First Assingee Address Previously Recorded on Reel 038627 Frame 0844. Assignor(S) Hereby Confirms the Assignment. |
| May 20, 2016 reel/frame not recorded | Kim, Yeong Kyun; Moon, An O | Vatech Ewoo Holdings Co., Ltd. | Corrective Assignment to Correct the First Assingee Address Previously Recorded on Reel 038627 Frame 0844. Assignor(S) Hereby Confirms the Assignment. |
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.
What's changing
Note
The 219 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2018 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.