Term ends no later than Aug 10, 2035 · Medium confidence
20-year base term ends Jan 23, 2035
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.
Held by Noster Inc.
Filed Jul 22, 2016 as application 15/113,654 · Granted Feb 4, 2020
Base term plus 199 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Jan 23, 2015
Jan 23, 2015
Ends no later than
Aug 10, 2035
Aug 10, 2035
Granted
Feb 4, 2020
Feb 4, 2020
base term
patent term adjustment
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
199
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.
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.
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 199 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. 1 of 3 maintenance fees is 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 Jan 23, 2015, when application PCT/JP2015/051843, the earliest non-provisional in its chain, was filed (this one was filed Jul 22, 2016) | Jan 23, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +199 days, USPTO patent term adjustment record | Aug 10, 2035 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Aug 10, 2035 | Medium confidence |
This family
| US 10,548,868 | this patent no later than Aug 2035 | no later than Aug 2035 |
| US 10,952,983 | In force Jan 2035 | Jan 2035 |
| US 12,491,173 | In force Mar 2035 | Mar 2035 |
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 |
|---|---|---|---|
| Jul 22, 2016 reel/frame not recorded | Ogawa, Jun; Goto, Tsuyoshi; Kishino, Shigenobu; Takahashi, Nobuyuki; Yonejima, Yasunori; Kawada, Teruo | Kyoto University | Assignment of Assignor's Interest |
| Jul 22, 2016 reel/frame not recorded | Ogawa, Jun; Goto, Tsuyoshi; Kishino, Shigenobu; Takahashi, Nobuyuki; Yonejima, Yasunori; Kawada, Teruo | Nitto Pharmaceutical Industries, Ltd. | Assignment of Assignor's Interest |
| Jul 22, 2016 Reel 39235, frame 668 | Ogawa, Jun; Kishino, Shigenobu; Kawada, Teruo; Takahashi, Nobuyuki; Goto, Tsuyoshi; Yonejima, Yasunori | Kyoto University; Nitto Pharmaceutical Industries, Ltd. | Assignment of Assignor's Interest |
| Apr 14, 2021 Reel 55920, frame 263 | Nitto Pharmaceutical Industries, Ltd. | Noster Inc. | Assignment of Assignor's Interest |
| Oct 9, 2024 Reel 68851, frame 663 | Kyoto University | Noster Inc. | Assignment of Assignor's Interest |
| Oct 18, 2024 Reel 69207, frame 122 | Kyoto University | Noster Inc. | Corrective Assignment to Correct the the Property Type from Application Number to Patent Number for 10952983 and 10975397 Previously Recorded at Reel: 68851 Frame: 663. 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
Aug 2035
Term ends no later than Aug 10, 2035. 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 199 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 Aug 10, 2035. We will not guess the cap.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2020 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
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.