Term ends May 17, 2030 · High confidence
20-year base term ends Aug 22, 2028
Held by Amgen Inc.
Filed Aug 22, 2008 as application 12/197,093 · Granted Oct 4, 2011
Base term plus 263 days of patent term adjustment (USPTO delay)
Today
2008
2030
Clock starts
Aug 22, 2008
Aug 22, 2008
Term ends
May 17, 2030
May 17, 2030
Granted
Oct 4, 2011
Oct 4, 2011
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
263
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.
28
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 263 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 Aug 22, 2008, when this application, 12/197,093, was filed | Aug 22, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +263 days, USPTO patent term adjustment record | May 12, 2029 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | +370 days, USPTO 35 U.S.C. 156 certificate | added to May 12, 2029: May 17, 2030 | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 17, 2030 | High confidence |
This family
| US 8,030,457 | this patent May 2030 | May 2030 |
| US 8,563,698 | In force Oct 2029 | Oct 2029 |
| Application 12/903,084 | Abandoned not computed | not computed |
| US 9,920,134 | In force Aug 2028 | Aug 2028 |
| Application 13/252,016 | Abandoned not computed | not computed |
| US 9,045,547 | In force Nov 2030 | Nov 2030 |
| US 8,168,762 | In force Aug 2028 | Aug 2028 |
| Application 13/422,887 | Abandoned not computed | not computed |
8 of 28 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 29, 2009 Reel 23022, frame 889 | Jackson, Simon M.; Walker, Nigel Pelham Clinton; Piper, Derek Evan; Shan, Bei; Shen, Wenyan; Chan, Joyce Chi Yee; King, Chadwick Terence; Ketchem, Randal Robert; Mehlin, Christopher; Carabeo, Teresa Arazas; Cao, Qiong | Amgen 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
May 2030
Term ends May 17, 2030. No further fees fall due before then
Note
The 263 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
236
later US patents cite this one
That is top 5% of utility patents granted in 2011 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.