Lapsed Aug 9, 2026 on the fee record · Medium confidence
20-year base term ends Feb 6, 2037
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
First maintenance fee unpaid; grace period ended.
Feb 6, 2017
Aug 9, 2026
Aug 9, 2022
Feb 6, 2037
Its term would have run to Feb 6, 2037: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 6, 2017, when application PCT/KR2017/001257, the earliest non-provisional in its chain, was filed (this one was filed May 7, 2021) | Feb 6, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed Aug 9, 2026 | High confidence |
| Computed term end | The steps above, in order | Aug 9, 2026 | Medium confidence |
This family
| US 10,354,500 | Lapsed on the fee record Jul 2023 | Jul 2023 |
| US 10,685,540 | In force no later than Feb 2037 | no later than Feb 2037 |
| US 11,004,314 | Lapsed on the fee record May 2025 | May 2025 |
| US 11,410,510 | this patent Aug 2026 | Aug 2026 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Mar 13, 2022 Reel 59249, frame 265 | Kim, Kyungmin; Kim, Hyun Jip | Hellofactory Co., Ltd. | 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.
What's changing
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Aug 9, 2026. We will not guess the cap.