Term ends Feb 19, 2036 · Medium confidence
20-year base term ends Feb 19, 2036
Why Medium: A parent in the chain could not be resolved.
Held by Uroviu Corporation
Filed Dec 27, 2017 as application 15/855,532 · Granted May 21, 2019
Base term, 20 years from filing
Today
2016
2036
Clock starts
Feb 19, 2016
Feb 19, 2016
Term ends
Feb 19, 2036
Feb 19, 2036
Granted
May 21, 2019
May 21, 2019
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
7
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 20-year base term, with no adjustment for prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Feb 19, 2016, when application PCT/US2016/018670, the earliest non-provisional in its chain, was filed (this one was filed Dec 27, 2017); a parent in its chain could not be resolved (the next row) | Feb 19, 2036 | 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 | 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 |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 19, 2036 | Medium confidence |
This family
| US 10,874,287 | In force no later than Jul 2037 | no later than Jul 2037 |
| US 10,278,563 | In force Feb 2036 | Feb 2036 |
| US 10,292,571 | this patent Feb 2036 | Feb 2036 |
3 of 7 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 |
|---|---|---|---|
| Dec 27, 2017 Reel 44493, frame 72 | Ouyang, Xiaolong; Deckman, Robert K; Ting, Chih-yu; Wang, Shih-ping | Uroviu Corporation | 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
Feb 2036
Term ends Feb 19, 2036. Maintenance fees still fall due before then
Citations
34
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.