Term ends Jan 16, 2038 · Low confidence
20-year base term ends Jan 16, 2038
Held by Nielsen-Kellerman Holdings, Inc.
Filed Mar 3, 2022 as application 17/685,972 · Granted May 23, 2023
Base term, 20 years from filing
Today
2018
2038
Clock starts
Jan 16, 2018
Jan 16, 2018
Term ends
Jan 16, 2038
Jan 16, 2038
Granted
May 23, 2023
May 23, 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,137,232, to Jan 16, 2038. The term already ends on or before that date, so the cap shortened nothing.
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 is its 20-year base term, with no 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. 1 of 3 maintenance fees is paid so far. Confidence: Low. 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 Jan 16, 2018, when application 15/872,237, the earliest non-provisional in its chain, was filed (this one was filed Mar 3, 2022); a parent in its chain could not be resolved (the next row) | Jan 16, 2038 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,137,232) | resolves to Jan 16, 2038, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 16787413, 15872237 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Jan 16, 2038 | Low confidence |
This family
| US 11,137,232 | In force Oct 2038 | Oct 2038 |
| US 11,280,593 | In force Jan 2038 | Jan 2038 |
| US 11,656,062 | this patent Jan 2038 | Jan 2038 |
| US 11,982,517 | In force Jan 2038 | Jan 2038 |
| Application 18/635,896 | Abandoned 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 7, 2022 Reel 61008, frame 598 | Magnetospeed, LLC | Nielsen-Kellerman, Co. | Assignment of Assignor's Interest |
| Feb 20, 2025 Reel 70276, frame 224 | Nielsen-Kellerman Co. | Nielsen-Kellerman Holdings, 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
Jan 2038
Term ends Jan 16, 2038. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,137,232, 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 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.