Lapsed Aug 13, 2017 on the fee record · High confidence
20-year base term ended Oct 21, 2023
First maintenance fee unpaid; grace period ended.
Filed Jul 8, 2011 as application 13/178,911 · Granted Aug 13, 2013
Base term, 20 years from filing, plus 92 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 13, 2017
2003
2026
Clock starts
Oct 21, 2003
Oct 21, 2003
No longer in force
Aug 13, 2017
Aug 13, 2017
Granted
Aug 13, 2013
Aug 13, 2013
Term would have run to
Jan 21, 2024
Jan 21, 2024
base term
patent term adjustment
after the term ends
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
92
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,027,333, to Jan 21, 2024. The term already ends on or before that date, so the cap shortened nothing.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
3
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 Jan 21, 2024: its 20-year base term plus 92 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Oct 21, 2003, when application 10/690,074, the earliest non-provisional in its chain, was filed (this one was filed Jul 8, 2011) | Oct 21, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +92 days, USPTO patent term adjustment record | Jan 21, 2024 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,027,333) | resolves to Jan 21, 2024, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | lapsed Aug 13, 2017 | High confidence |
| Computed term end | The steps above, in order | Aug 13, 2017 | High confidence |
This family
| US 7,440,442 | In force Nov 2026 | Nov 2026 |
| US 8,027,333 | Term ended Aug 2024 | Aug 2024 |
| US 8,509,225 | this patent Aug 2017 | Aug 2017 |
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 |
|---|---|---|---|
| Nov 9, 2015 Reel 37079, frame 1 | Hewlett-packard Development Company, L.p. | Hewlett Packard Enterprise Development LP | 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 92 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,027,333, ends no earlier than this term, so it caps nothing.
Citations
46
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.