Term ends Oct 10, 2040 · High confidence
20-year base term ends Feb 19, 2040
Held by Level 3 Communications, LLC
Filed Feb 19, 2020 as application 16/795,447 · Granted Sep 13, 2022
Base term plus 234 days of patent term adjustment (USPTO delay)
Today
2020
2040
Clock starts
Feb 19, 2020
Feb 19, 2020
Term ends
Oct 10, 2040
Oct 10, 2040
Granted
Sep 13, 2022
Sep 13, 2022
base term
patent term adjustment
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
234
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 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.
21
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 234 days past its 20-year base term on 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 Feb 19, 2020, when this application, 16/795,447, was filed | Feb 19, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +234 days, USPTO patent term adjustment record | Oct 10, 2040 | 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 | Oct 10, 2040 | High confidence |
This family
| Application 62/808,183 | Provisional application no patent term | no patent term |
| Application 62/808,189 | Provisional application no patent term | no patent term |
| Application 62/968,811 | Provisional application no patent term | no patent term |
| US 11,246,044 | In force Jun 2040 | Jun 2040 |
| US 11,246,045 | In force Jun 2040 | Jun 2040 |
| US 11,445,385 | this patent Oct 2040 | Oct 2040 |
| US 11,284,215 | In force Jun 2040 | Jun 2040 |
| Application PCT/US2020/018877 | PCT application no patent term | no patent term |
8 of 21 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 |
|---|---|---|---|
| Nov 4, 2024 Reel 69295, frame 749 | Level 3 Communications, LLC; Global Crossing Telecommunications, Inc. | Wilmington Trust, National Association, as Collateral Agent | Notice of Grant of Security Interest in Intellectual Property (Second Lien) |
| Nov 4, 2024 Reel 69295, frame 858 | Level 3 Communications, LLC; Global Crossing Telecommunications, Inc. | Wilmington Trust, National Association, as Collateral Agent | Notice of Grant of Security Interest in Intellectual Property (First Lien) |
| Jun 12, 2026 Reel 75738, frame 427 | Wilmington Trust, National Association, as Retiring Collateral Agent | U.S. Bank Trust Company, National Association, as Successor Collateral Agent | Assignment of First Lien Security Interest in Patent Collateral Recorded at R/F 069295/0858 |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2040
Term ends Oct 10, 2040. Maintenance fees still fall due before then
Note
The 234 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
16
later US patents cite this one
That is top 10% 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.