Term ends Oct 28, 2032 · Medium confidence
20-year base term ended Dec 14, 2024
Why Medium: A parent in the chain could not be resolved.
Held by Kyndryl, Inc.
Filed Jun 23, 2005 as application 11/159,918 · Granted Oct 18, 2022
Base term plus 2875 days of patent term adjustment (USPTO delay)
Today
2004
2032
Clock starts
Dec 14, 2004
Dec 14, 2004
Term ends
Oct 28, 2032
Oct 28, 2032
Granted
Oct 18, 2022
Oct 18, 2022
base term
patent term adjustment
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
2,875
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
11
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 2875 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. 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 Dec 14, 2004, when application 11/011,449, the earliest non-provisional in its chain, was filed (this one was filed Jun 23, 2005); a parent in its chain could not be resolved (the next row) | Dec 14, 2024 | 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 | +2875 days, USPTO patent term adjustment record | Oct 28, 2032 | 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 | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 28, 2032 | Medium confidence |
This family
| US 8,645,513 | Lapsed on the fee record Feb 2026 | Feb 2026 |
| US 7,568,022 | Lapsed on the fee record Jul 2021 | Jul 2021 |
| US 8,028,334 | Lapsed on the fee record Sep 2015 | Sep 2015 |
| US 7,797,739 | Lapsed on the fee record Sep 2014 | Sep 2014 |
| US 11,477,093 | this patent Oct 2032 | Oct 2032 |
| US 7,523,092 | Term ended Nov 2025 | Nov 2025 |
| US 8,626,887 | Lapsed on the fee record Jan 2018 | Jan 2018 |
| US 7,937,462 | Lapsed on the fee record May 2015 | May 2015 |
8 of 11 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 |
|---|---|---|---|
| Jun 23, 2005 Reel 16727, frame 616 | Flaxer, David Bernard; Greenstein, Paul Gregory; Hampshire, Robert C.; Nigam, Anil; Rackham, Jonathan James; Vergo, John George | International Business Machines Corporation | Assignment of Assignor's Interest |
| Nov 18, 2021 Reel 58213, frame 912 | International Business Machines Corporation | Kyndryl, 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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Alerts on its grants, lapses and transfers.
What's changing
Oct 2032
Term ends Oct 28, 2032. Maintenance fees still fall due before then
Note
The 2875 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
182
later US patents cite this one
That is top 1% of utility patents granted in 2022 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.