Lapsed Sep 27, 2015 on the fee record · Medium confidence
20-year base term ended Dec 14, 2024
Why Medium: A parent in the chain could not be resolved.
First maintenance fee unpaid; grace period ended.
Held by Kyndryl, Inc.
Filed May 3, 2005 as application 11/120,678 · Granted Sep 27, 2011
Base term, 20 years from filing, plus 1731 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 27, 2015
2004
2029
Clock starts
Dec 14, 2004
Dec 14, 2004
No longer in force
Sep 27, 2015
Sep 27, 2015
Granted
Sep 27, 2011
Sep 27, 2011
Term would have run to
Sep 10, 2029
Sep 10, 2029
base term
patent term adjustment
after the term ends
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
1,731
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
11
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 Sep 10, 2029: its 20-year base term plus 1731 days of term adjustment for 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 Dec 14, 2004, when application 11/011,449, the earliest non-provisional in its chain, was filed (this one was filed May 3, 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 | +1731 days, USPTO patent term adjustment record | Sep 10, 2029 | 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 | 0 of 3 maintenance fees paid | lapsed Sep 27, 2015 | High confidence |
| Computed term end | The steps above, in order | Sep 27, 2015 | 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 | this patent Sep 2015 | Sep 2015 |
| US 7,797,739 | Lapsed on the fee record Sep 2014 | Sep 2014 |
| US 11,477,093 | In force 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 |
|---|---|---|---|
| May 17, 2005 Reel 16220, frame 365 | Andreev, Dmitry; Greenstein, Paul G.; Grunin, Galina; Vilshansky, Gregory | International Business Machines Corporation | Assignment of Assignor's Interest |
| Oct 13, 2021 Reel 57885, frame 644 | 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
Note
The 1731 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
138
later US patents cite this one
That is top 5% of utility patents granted in 2011 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.