Term ends Aug 20, 2039 · High confidence
Held by Otis Elevator Company
Filed Dec 18, 2019 as application 29/717,574 · Granted Aug 20, 2024
Base term, 15 years from grant
Today
2024
2039
Clock starts
Aug 20, 2024
Aug 20, 2024
Term ends
Aug 20, 2039
Aug 20, 2039
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
15 years from grant
Base term
No maintenance fees are payable on this kind of patent.
5
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 is its base term, 15 years from grant, with no adjustment for prosecution delay. No maintenance fees are payable on this kind of patent. 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, 15 years from grant | Granted Aug 20, 2024 | Aug 20, 2039 | 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Computed term end | The steps above, in order | Aug 20, 2039 | High confidence |
This family
| US D1,039,409 | this patent Aug 2039 | Aug 2039 |
| US D1,096,942 | In force Oct 2040 | Oct 2040 |
| US D1,096,941 | In force Oct 2040 | Oct 2040 |
| US D1,096,474 | In force Oct 2040 | Oct 2040 |
| US D1,096,943 | In force Oct 2040 | Oct 2040 |
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 |
|---|---|---|---|
| Jan 19, 2021 Reel 54949, frame 931 | Shi, Lilong; Zhou, Shunqiang; Ling, Sihua; Zhang, Denghui | Guangzhou Otis Elevator Co., Ltd. | Assignment of Assignor's Interest |
| Jan 19, 2021 Reel 54950, frame 111 | Cai, Qingxi | Otis Electric Elevator Co., Ltd. | Assignment of Assignor's Interest |
| Jan 19, 2021 Reel 55025, frame 538 | Guangzhou Otis Elevator Co., Ltd. | Otis Elevator Company | Assignment of Assignor's Interest |
| Jan 19, 2021 Reel 55760, frame 907 | Otis Electric Elevator Co., Ltd. | Otis Elevator Company | 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
No maintenance fees are payable on this kind of patent, so the record carries no fee events.
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Alerts on its grants, lapses and transfers.
What's changing
Aug 2039
Term ends Aug 20, 2039. No maintenance fees are payable on this kind of patent
Citations
4
later US patents cite this one
That is above the median of design patents granted in 2024 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.