Collateral for a security interest recorded May 14, 2025 (Sip Mobility Platformco, LLC).
Term ends Mar 23, 2041 · High confidence
20-year base term ends Mar 23, 2041
Held by Cavnue Technology, LLC
Filed Sep 2, 2021 as application 17/465,480 · Granted Mar 21, 2023
Base term plus 50 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2021
2041
Clock starts
Mar 23, 2021
Mar 23, 2021
Term ends
Mar 23, 2041
Mar 23, 2041
Granted
Mar 21, 2023
Mar 21, 2023
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
50
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,138,873.
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.
5
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 50 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Mar 23, 2021, when application 17/210,099, the earliest non-provisional in its chain, was filed (this one was filed Sep 2, 2021) | Mar 23, 2041 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +50 days, USPTO patent term adjustment record | May 12, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,138,873) | capped to Mar 23, 2041 | 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 | Mar 23, 2041 | High confidence |
This family
| US 11,138,873 | In force Mar 2041 | Mar 2041 |
| US 11,610,480 | this patent Mar 2041 | Mar 2041 |
| Application PCT/US2022/019740 | PCT application no patent term | no patent term |
| US 12,361,822 | In force Mar 2041 | Mar 2041 |
| Application 19/267,783 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Sep 2, 2021 Reel 57375, frame 619 | Clifford, David Hahn | Cavnue Technology, LLC | Assignment of Assignor's Interest |
| May 14, 2025 Reel 71278, frame 907 | Cavnue Technology, LLC | Sip Mobility Platformco, LLC | Security Interest |
| Jan 29, 2026 Reel 74533, frame 139 | Cavnue Technology, LLC | Sip Mobilityco Platformco, LLC | Amendment No. 1 to Grant of Security Interest in Patents |
| Jan 30, 2026 Reel 74536, frame 444 | Sip Mobilityco Platformco, LLC | Cavnue Technology, LLC | Release of Security Interest in Patents Recorded at R/F 71278/0907 |
| Apr 9, 2026 Reel 74328, frame 202 | Cavnue Technology, LLC | Golub Capital Markets LLC | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2041
Term ends Mar 23, 2041. Maintenance fees still fall due before then
Note
The 50 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,138,873.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2023 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.