Term ends Feb 17, 2031 · Medium confidence
20-year base term ends Oct 18, 2030
Why Medium: A parent in the chain could not be resolved.
Held by Zonar Systems, Inc.
Filed Jan 8, 2019 as application 16/242,355 · Granted Sep 22, 2020
Base term plus 122 days of patent term adjustment (USPTO delay)
Today
2010
2031
Clock starts
Oct 18, 2010
Oct 18, 2010
Term ends
Feb 17, 2031
Feb 17, 2031
Granted
Sep 22, 2020
Sep 22, 2020
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
122
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
10
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 122 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. Confidence: Medium. 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 Oct 18, 2010, when application 12/906,615, the earliest non-provisional in its chain, was filed (this one was filed Jan 8, 2019); a parent in its chain could not be resolved (the next row) | Oct 18, 2030 | 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 | +122 days, USPTO patent term adjustment record | Feb 17, 2031 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 17, 2031 | Medium confidence |
This family
| Application 12/906,615 | Abandoned not computed | not computed |
| Application 14/204,962 | Abandoned not computed | not computed |
| US 9,815,681 | Lapsed on the fee record Nov 2025 | Nov 2025 |
| Application 14/206,646 | Abandoned not computed | not computed |
| US 9,856,129 | Lapsed on the fee record Jan 2026 | Jan 2026 |
| US 9,828,233 | Lapsed on the fee record Nov 2025 | Nov 2025 |
| US 9,881,432 | Lapsed on the fee record Jan 2026 | Jan 2026 |
| US 10,489,998 | In force Aug 2031 | Aug 2031 |
8 of 10 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 |
|---|---|---|---|
| Dec 2, 2024 Reel 69466, frame 630 | Zonar Systems, Inc. | Twin Brook Capital Partners, LLC, as Agent | 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
Feb 2031
Term ends Feb 17, 2031. Maintenance fees still fall due before then
Note
The 122 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.