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US 7,425,631 In force
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Term ends Dec 3, 2026 · High confidence

Filed Apr 12, 2004 as application 10/823,377 · Granted Sep 16, 2008
Base term plus 965 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2004 2026
Clock starts
Apr 12, 2004
Term ends
Dec 3, 2026
Granted
Sep 16, 2008
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
965
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.

This patent's term runs 965 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Apr 12, 2004, when this application, 10/823,377, was filedApr 12, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+965 days, USPTO patent term adjustment recordDec 3, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 3, 2026High confidence

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.
RecordedAssignorAssigneeConveyance
Jan 25, 2005
Reel 15622, frame 409
Askew, Benny C., JR.; D'amico, Derin C.; Han, Nianhe; Nomak, Rana; Fotsch, Christopher H.; Liu, Qingyian; Riahi, Babak; Yang, Kevin; Li, Aiwen; Yuan, Chester Chenguang; Biswas, Kaustav; Harried, Scott; Nguyen, Thomas; Qian, Wenyuan; Chen, Jian JeffreyAmgen Inc.Assignment of Assignor's Interest
Jan 26, 2005
Reel 15622, frame 778
Groneberg, Robert D.; Zhan, James; Toro, Andras; Kim, Yongboo; Mareska, DavidArray Biopharma 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.

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