Term ended Aug 19, 2026 · Medium confidence
20-year base term ended Aug 14, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Hitachi Vantara, Ltd.
Filed Dec 17, 2012 as application 13/716,326 · Granted Dec 30, 2014
Base term plus 5 days of patent term adjustment (USPTO delay)
Today
Term ended Aug 19, 2026
2006
2026
Clock starts
Aug 14, 2006
Aug 14, 2006
Term ended
Aug 19, 2026
Aug 19, 2026
Granted
Dec 30, 2014
Dec 30, 2014
base term
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
5
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 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.
5
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 5 days past its 20-year base term on prosecution delay. Confidence: Medium. 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 14, 2006, when application 11/503,217, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2012); a parent in its chain could not be resolved (the next row) | Aug 14, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +5 days, USPTO patent term adjustment record | Aug 19, 2026 | 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 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Aug 19, 2026 | Medium confidence |
This family
| US 7,640,390 | In force Jun 2027 | Jun 2027 |
| US 7,899,981 | Term ended Aug 2026 | Aug 2026 |
| US 8,924,637 | this patent Aug 2026 | Aug 2026 |
3 of 5 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 |
|---|---|---|---|
| Aug 20, 2024 Reel 69518, frame 761 | Hitachi, Ltd. | Hitachi Vantara, Ltd. | Company Split |
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 5 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is below the median 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.