Lapsed Oct 21, 2026 on the fee record · Low confidence
20-year base term ends Jan 28, 2033
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Filed Jan 28, 2013 as application 13/751,269 · Granted Oct 21, 2014
Base term, 20 years from filing
Today
Lapsed Oct 21, 2026
2013
2033
Clock starts
Jan 28, 2013
Jan 28, 2013
No longer in force
Oct 21, 2026
Oct 21, 2026
Granted
Oct 21, 2014
Oct 21, 2014
Term would have run to
Jan 28, 2033
Jan 28, 2033
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
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.
2
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 28, 2033: its 20-year base term, with no adjustment for prosecution delay. Confidence: Low. 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 Jan 28, 2013, when this application, 13/751,269, was filed | Jan 28, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Oct 21, 2026 | Low confidence |
| Computed term end | The steps above, in order | Oct 21, 2026 | Low confidence |
This family
| US 8,913,850 | In force Jan 2033 | Jan 2033 |
| US 8,867,819 | this patent Oct 2026 | Oct 2026 |
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 |
|---|---|---|---|
| Jan 28, 2013 Reel 29703, frame 110 | Calio, Robert J.; Connell, Jonathan H., II; Frissora, Michael J.; Isci, Canturk; Kephart, Jeffrey O.; Lenchner, Jonathan; McIntosh, Suzanne K.; Mohomed, Iqbal I.; Nelson, John C.; Thoensen, James W. | International Business Machines Corporation | 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.
Citations
10
later US patents cite this one
That is above 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.