Term ends Apr 22, 2029 · High confidence
20-year base term ends Feb 6, 2029
Held by Oncotherapy Science, Inc.
Filed Jul 31, 2009 as application 12/533,348 · Granted Feb 19, 2013
Base term plus 75 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Feb 6, 2009
Feb 6, 2009
Term ends
Apr 22, 2029
Apr 22, 2029
Granted
Feb 19, 2013
Feb 19, 2013
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
75
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
5
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 75 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Feb 6, 2009, when application PCT/JP2009/052039, the earliest non-provisional in its chain, was filed (this one was filed Jul 31, 2009) | Feb 6, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +75 days, USPTO patent term adjustment record | Apr 22, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 22, 2029 | High confidence |
This family
| US 8,378,081 | this patent Apr 2029 | Apr 2029 |
| Application 12/851,233 | Abandoned not computed | not computed |
| US 9,085,614 | In force May 2031 | May 2031 |
| US 9,090,680 | In force Jan 2030 | Jan 2030 |
4 of 5 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 |
|---|---|---|---|
| Oct 19, 2009 Reel 23391, frame 836 | Shibata, Masao; Yokoseki, Tatsuki | Immunas Pharma, Inc. | Assignment of Assignor's Interest |
| Oct 20, 2009 Reel 23393, frame 364 | Matsubara, Etsuro | Japan as Represented by President of National Center for Geriatrics and Gerontology | Assignment of Assignor's Interest |
| Mar 16, 2011 Reel 25968, frame 1 | Japan as Represented by President of National Center for Geriatrics and Gerontology | National Center for Geriatrics and Gerontology | Change of Name |
| May 5, 2011 Reel 26226, frame 178 | Japan as Represented by President of National Center for Geriatrics and Gerontology | National Center for Geriatrics and Gerontology | Corrective Assignment to Correct the Numeric Part of the Assignee's Address Previously Recorded on Reel 025968 Frame 0001. Assignor(S) Hereby Confirms the 35, Gengo, Morioka-Machi, Obu-Shi, Aichi, Japan 4748511. |
| Nov 15, 2024 Reel 69276, frame 718 | Immunas Pharma, Inc. | Oncotherapy Science, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Apr 2029
Term ends Apr 22, 2029. No further fees fall due before then
Note
The 75 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.