Lapsed Sep 30, 2026 on the fee record · High confidence
20-year base term ended Apr 9, 2024
Third maintenance fee unpaid; grace period ended.
Held by The Board of Trustees of the Leland Stanford Junior University and The United States Government as Represented by the Department of Veterans Affairs
Filed Mar 11, 2009 as application 12/402,404 · Granted Sep 30, 2014
Base term, 20 years from filing, plus 1169 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 30, 2026
2004
2027
Clock starts
Apr 9, 2004
Apr 9, 2004
No longer in force
Sep 30, 2026
Sep 30, 2026
Granted
Sep 30, 2014
Sep 30, 2014
Term would have run to
Jun 22, 2027
Jun 22, 2027
base term
patent term adjustment
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,169
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.
21
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 22, 2027: its 20-year base term plus 1169 days of term adjustment for prosecution delay. 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 Apr 9, 2004, when application 10/821,807, the earliest non-provisional in its chain, was filed (this one was filed Mar 11, 2009) | Apr 9, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1169 days, USPTO patent term adjustment record | Jun 22, 2027 | 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 | lapsed Sep 30, 2026 | High confidence |
| Computed term end | The steps above, in order | Sep 30, 2026 | High confidence |
This family
| US 7,520,848 | Lapsed on the fee record Apr 2021 | Apr 2021 |
| US 8,052,591 | In force Dec 2028 | Dec 2028 |
| Application PCT/US2007/010262 | PCT application no patent term | no patent term |
| Application 12/185,544 | Abandoned not computed | not computed |
| US 8,267,850 | In force Mar 2031 | Mar 2031 |
| US 8,845,508 | this patent Sep 2026 | Sep 2026 |
| Application 12/701,395 | Abandoned not computed | not computed |
| US 8,956,273 | In force (reinstated) Oct 2031 | Oct 2031 |
8 of 21 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 9, 2009 Reel 23352, frame 714 | Schneider, M. Bret; Mishelevich, David J. | The Board of Trustees of the Leland Stanford Junior University | Assignment of Assignor's Interest |
| Mar 11, 2019 Reel 48564, frame 624 | The Board of Trustees of the Leland Stanford Junior University | The Board of Trustees of the Leland Stanford Junior University; The United States Government as Represented by the Department of Veterans Affairs | Assignment of Assignor's Interest |
| Mar 11, 2019 reel/frame not recorded | The Board of Trustees of the Leland Stanford Junior University | The Board of Trustees of the Leland Stanford Junior University | Assignment of Assignor's Interest |
| Mar 11, 2019 reel/frame not recorded | The Board of Trustees of the Leland Stanford Junior University | The United States Government as Represented by the Department of Veterans Affairs | 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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Alerts on its grants, lapses and transfers.
What's changing
Note
The 1169 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
40
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.