Lapsed Apr 19, 2026 on the fee record · High confidence
20-year base term ends Mar 13, 2032
First maintenance fee unpaid; grace period ended.
Held by Kyndryl, Inc.
Filed Mar 27, 2019 as application 16/365,840 · Granted Apr 19, 2022
Base term, 20 years from filing, plus 17 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 19, 2026
2012
2032
Clock starts
Mar 13, 2012
Mar 13, 2012
No longer in force
Apr 19, 2026
Apr 19, 2026
Granted
Apr 19, 2022
Apr 19, 2022
Term would have run to
Mar 30, 2032
Mar 30, 2032
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
17
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 10,326,668, US 9,098,345, to Mar 30, 2032. 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 Mar 30, 2032: its 20-year base term plus 17 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 Mar 13, 2012, when application 13/418,647, the earliest non-provisional in its chain, was filed (this one was filed Mar 27, 2019) | Mar 13, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +17 days, USPTO patent term adjustment record | Mar 30, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,326,668, US 9,098,345) | resolves to Mar 30, 2032, 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 Apr 19, 2026 | High confidence |
| Computed term end | The steps above, in order | Apr 19, 2026 | High confidence |
This family
| US 9,098,345 | In force Feb 2033 | Feb 2033 |
| US 10,326,668 | In force Sep 2032 | Sep 2032 |
| US 11,310,122 | this patent Apr 2026 | Apr 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 |
|---|---|---|---|
| Mar 27, 2019 Reel 48709, frame 959 | Jones, Marc; Skarda, Duke | Softlayer Technologies, Inc. | Assignment of Assignor's Interest |
| Jul 5, 2021 Reel 56754, frame 340 | Software Technologies, Inc. | International Business Machines Corporation | Assignment of Assignor's Interest |
| Jul 22, 2021 Reel 56963, frame 528 | Softlayer Technologies, Inc. | International Business Machines Corporation | Corrective Assignment to Correct the Conveying Party's Name Previously Recorded at Reel: 056754 Frame: 0340. Assignor(S) Hereby Confirms the Assignment . |
| 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
Note
The 17 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 10,326,668, US 9,098,345, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites this one
That is below the median 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.