Term ends Jun 17, 2039 · High confidence
20-year base term ends Jun 17, 2039
Held by Phoenix Infrastructure LLC
Filed Jun 17, 2019 as application 16/442,997 · Granted Jun 28, 2022
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
Jun 28, 2022
Jun 28, 2022
base term
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.
1 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. 1 of 3 maintenance fees is 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 this application, 16/442,997, was filed | 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 | 1 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 | this patent 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 | In force 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 12, 2019 Reel 50025, frame 451 | Cyxtera Technologies, Inc. | Cyxtera Data Centers, Inc. | Assignment of Assignor's Interest |
| Sep 5, 2019 Reel 50285, frame 671 | Lochhead, Jason Anthony | Cyxtera Technologies, 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
8
later US patents cite this one
That is top 25% 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.