Term ends no later than Jan 25, 2040 · Low confidence
20-year base term ends Sep 27, 2039
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Filed Sep 14, 2022 as application 17/944,705 · Granted Nov 19, 2024
Base term plus 120 days of patent term adjustment (USPTO delay)
Today
2019
2040
Clock starts
Sep 27, 2019
Sep 27, 2019
Ends no later than
Jan 25, 2040
Jan 25, 2040
Granted
Nov 19, 2024
Nov 19, 2024
base term
patent term adjustment
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
120
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
0 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 120 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 3 maintenance fees are paid so far. 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 Sep 27, 2019, when application PCT/CN2019/108425, the earliest non-provisional in its chain, was filed (this one was filed Sep 14, 2022); a parent in its chain could not be resolved (the next row) | Sep 27, 2039 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +120 days, USPTO patent term adjustment record | Jan 25, 2040 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | no later than Jan 25, 2040 | Low confidence |
This family
| US 11,469,392 | In force Jun 2040 | Jun 2040 |
| US 12,150,329 | this patent no later than Jan 2040 | no later than Jan 2040 |
| Application 18/926,999 | Pending not computed | not computed |
3 of 4 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 |
|---|---|---|---|
| Sep 14, 2022 Reel 61095, frame 165 | Zhang, Ziyu; Xie, Chunyan; Zhang, Song | BOE Technology Group Co., Ltd. | Assignment of Assignor's Interest |
| Sep 14, 2022 Reel 61095, frame 265 | BOE Technology Group Co., Ltd. | Beijing BOE Technology Development Co., Ltd. | Assignment of Assignor's Interest |
| Apr 3, 2024 Reel 66990, frame 939 | BOE Technology Group Co., Ltd. | BOE Technology Group Co., Ltd. | This Submission Is to Correct an Error Made in a Previously Recorded Document That Erroneously Affects the Identified Application. |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Jan 2040
Term ends no later than Jan 25, 2040. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 120 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jan 25, 2040. We will not guess the cap.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.