Term ends Jun 17, 2039 · High confidence
20-year base term ends Jun 17, 2039
Held by Phoenix Infrastructure LLC
Filed Aug 25, 2022 as application 17/895,909 · Granted Mar 4, 2025
Base term, 20 years from filing
Today
2019
2039
Clock starts
Jun 17, 2019
Jun 17, 2019
Term ends
Jun 17, 2039
Jun 17, 2039
Granted
Mar 4, 2025
Mar 4, 2025
base term
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.
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.
12
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 is its 20-year base term, with no adjustment for prosecution delay. 0 of 3 maintenance fees are paid so far. 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 Jun 17, 2019, when application 16/442,997, the earliest non-provisional in its chain, was filed (this one was filed Aug 25, 2022) | Jun 17, 2039 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 17, 2039 | High confidence |
This family
| US 11,374,879 | In force Jun 2039 | Jun 2039 |
| US 11,431,654 | In force Nov 2039 | Nov 2039 |
| US 11,496,365 | In force Jul 2039 | Jul 2039 |
| US 11,374,880 | In force Jun 2039 | Jun 2039 |
| Application PCT/US2020/036131 | PCT application no patent term | no patent term |
| US 12,375,427 | In force Jun 2039 | Jun 2039 |
| Application 17/808,719 | Abandoned not computed | not computed |
| US 12,244,520 | this patent Jun 2039 | Jun 2039 |
8 of 12 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 25, 2022 Reel 60904, frame 949 | Lochhead, Jason; Subramanian, Manikandan; Hess, David; Ballard, Michael Andra; Wayne, Adam Scott | Cyxtera Data Centers, Inc. | Assignment of Assignor's Interest |
| Mar 20, 2023 Reel 63117, frame 893 | Cyxtera Data Centers, Inc. | Citibank, N.A., as Collateral Agent | Patent Security Agreement |
| Jan 23, 2024 Reel 66216, frame 286 | Cyxtera Data Centers, Inc. | Phoenix Infrastructure LLC | 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
Jun 2039
Term ends Jun 17, 2039. Maintenance fees still fall due before then
Citations
2
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.