Term ends Dec 10, 2034 · Low confidence
20-year base term ends Dec 10, 2034
Held by Tosoh Bioscience LLC
Filed Jun 4, 2021 as application 17/338,934 · Granted Jul 18, 2023
Base term plus 81 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Dec 10, 2014
Dec 10, 2014
Term ends
Dec 10, 2034
Dec 10, 2034
Granted
Jul 18, 2023
Jul 18, 2023
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
81
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 10,393,276, US 11,054,045.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
10
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 81 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 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 Dec 10, 2014, when application PCT/US2014/069580, the earliest non-provisional in its chain, was filed (this one was filed Jun 4, 2021); a parent in its chain could not be resolved (the next row) | Dec 10, 2034 | 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 | +81 days, USPTO patent term adjustment record | Mar 1, 2035 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,393,276, US 11,054,045) | capped to Dec 10, 2034 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 16550550 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Dec 10, 2034 | Low confidence |
This family
| US 10,393,276 | In force Dec 2034 | Dec 2034 |
| US 10,451,188 | In force no later than Apr 2035 | no later than Apr 2035 |
| US 11,054,045 | In force Dec 2034 | Dec 2034 |
| US 11,174,952 | In force Dec 2034 | Dec 2034 |
| US 11,703,133 | this patent Dec 2034 | Dec 2034 |
| US 11,773,989 | In force Dec 2034 | Dec 2034 |
| US 12,129,935 | In force no later than Dec 2034 | no later than Dec 2034 |
| US 12,264,756 | In force Dec 2034 | Dec 2034 |
8 of 10 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 |
|---|---|---|---|
| Jan 10, 2022 Reel 58683, frame 485 | Semba Biosciences, Inc. | Tosoh Bioscience Wisconsin, Inc. | Change of Name |
| Jan 28, 2022 Reel 58815, frame 325 | Mierendorf, Robert Charles; Harbrecht, Brian A. | Semba Biosciences, Inc. | Assignment of Assignor's Interest |
| Jan 28, 2022 Reel 58815, frame 363 | Manke, Scott G. | Semba Biosciences, Inc. | Assignment of Assignor's Interest |
| Jan 11, 2023 Reel 62346, frame 637 | Tosoh Bioscience Wisconsin, Inc. | Tosoh Bioscience LLC | Merger |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2034
Term ends Dec 10, 2034. Maintenance fees still fall due before then
Note
The 81 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 10,393,276, US 11,054,045.
Citations
2
later US patents cite this one
That is above the median of utility patents granted in 2023 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.