Term ends Oct 30, 2034 · High confidence
20-year base term ends Oct 30, 2034
Held by Kyoto Prefectural Public University Corporation, The Doshisha and Senju Pharmaceutical Co., Ltd.
Filed Jun 3, 2022 as application 17/831,843 · Granted Nov 10, 2026
Base term plus 1105 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Oct 30, 2014
Oct 30, 2014
Term ends
Oct 30, 2034
Oct 30, 2034
Granted
Nov 10, 2026
Nov 10, 2026
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
1,105
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,382,904.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
3
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 1105 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 1 maintenance fees are paid so far. 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, 20 years from filing | Clock starts Oct 30, 2014, when application PCT/JP2014/079513, the earliest non-provisional in its chain, was filed (this one was filed Jun 3, 2022) | Oct 30, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1105 days, USPTO patent term adjustment record | Nov 8, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,382,904) | capped to Oct 30, 2034 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 30, 2034 | High confidence |
This family
| US 11,382,904 | In force Oct 2034 | Oct 2034 |
| US 12,788,747 | this patent Oct 2034 | Oct 2034 |
2 of 3 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 |
|---|---|---|---|
| Apr 13, 2026 Reel 74349, frame 838 | Koizumi, Noriko; Okumura, Naoki; Kinoshita, Shigeru | Kyoto Prefectural Public University Corporation; The Doshisha; Senju Pharmaceutical Co., Ltd. | Assignment of Assignor's Interest |
| Apr 13, 2026 Reel 75384, frame 154 | Senju Pharmaceutical Co., Ltd. | Senju Pharmaceutical Co., Ltd. | Change of Address |
| Apr 13, 2026 reel/frame not recorded | Kinoshita, Shigeru; Koizumi, Noriko; Okumura, Naoki | Kyoto Prefectural Public University Corporation | Assignment of Assignor's Interest |
| Apr 13, 2026 reel/frame not recorded | Kinoshita, Shigeru; Koizumi, Noriko; Okumura, Naoki | The Doshisha | Assignment of Assignor's Interest |
| Apr 13, 2026 reel/frame not recorded | Kinoshita, Shigeru; Koizumi, Noriko; Okumura, Naoki | Senju Pharmaceutical 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.
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Alerts on its grants, lapses and transfers.
What's changing
Oct 2034
Term ends Oct 30, 2034. Maintenance fees still fall due before then
Note
The 1105 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,382,904.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.