Term ends Aug 7, 2029 · High confidence
20-year base term ended Jul 18, 2026
Held by E. R. Squibb & Sons, L.L.C.
Filed Dec 22, 2010 as application 12/976,802 · Granted Mar 17, 2015
Base term plus 1116 days of patent term adjustment (USPTO delay)
Today
2006
2029
Clock starts
Jul 18, 2006
Jul 18, 2006
Term ends
Aug 7, 2029
Aug 7, 2029
Granted
Mar 17, 2015
Mar 17, 2015
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
1,116
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
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 1116 days past its 20-year base term on prosecution delay. 2 of 3 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 Jul 18, 2006, when application 11/458,260, the earliest non-provisional in its chain, was filed (this one was filed Dec 22, 2010) | Jul 18, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1116 days, USPTO patent term adjustment record | Aug 7, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 7, 2029 | High confidence |
This family
| US 7,868,140 | In force Oct 2027 | Oct 2027 |
| US 8,981,071 | this patent Aug 2029 | Aug 2029 |
| US 9,266,945 | Term ended no later than Jul 2026 | no later than Jul 2026 |
| US 10,072,090 | In force Mar 2027 | Mar 2027 |
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 |
|---|---|---|---|
| Jun 14, 2011 Reel 26438, frame 175 | Siu, Gerald; Shen, Wenyan; Yoshinaga, Steven Kiyoshi | Amgen Inc. | Assignment of Assignor's Interest |
| Jan 27, 2014 Reel 32049, frame 357 | Medarex, Inc. | Medarex, L.l.c. | Merger |
| Apr 29, 2015 Reel 35524, frame 775 | Huang, Haichun | Medarex, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2015 Reel 35532, frame 713 | Medarex, L.l.c. | E. R. Squibb & Sons, L.L.C. | 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
Aug 2029
Term ends Aug 7, 2029.
Note
The 1116 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2015 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.