Term ends Jun 7, 2031 · Low confidence
20-year base term ends Dec 6, 2030
Held by Vello Systems, Inc.
Filed Mar 27, 2013 as application 13/851,936 · Granted Aug 16, 2016
Base term plus 183 days of patent term adjustment (USPTO delay)
Today
2010
2031
Clock starts
Dec 6, 2010
Dec 6, 2010
Term ends
Jun 7, 2031
Jun 7, 2031
Granted
Aug 16, 2016
Aug 16, 2016
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
183
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,744,262, to Jun 7, 2031. The term already ends on or before that date, so the cap shortened nothing.
2 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.
4
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 183 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are 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 Dec 6, 2010, when application 12/961,436, the earliest non-provisional in its chain, was filed (this one was filed Mar 27, 2013); a parent in its chain could not be resolved (the next row) | Dec 6, 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 | +183 days, USPTO patent term adjustment record | Jun 7, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,744,262) | resolves to Jun 7, 2031, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 12961436 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Jun 7, 2031 | Low confidence |
This family
| US 8,744,262 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| US 9,419,743 | this patent Jun 2031 | Jun 2031 |
| Application 15/238,554 | Abandoned not computed | not computed |
| US 10,630,418 | In force Dec 2030 | Dec 2030 |
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 |
|---|---|---|---|
| May 28, 2013 Reel 30498, frame 219 | Vello Systems, Inc. | Venture Lending & Leasing VI, Inc.; Venture Lending & Leasing VII, Inc. | Security Agreement |
| May 28, 2013 reel/frame not recorded | Vello Systems, Inc. | Venture Lending & Leasing VI, Inc. | Security Agreement |
| May 28, 2013 reel/frame not recorded | Vello Systems, Inc. | Venture Lending & Leasing VII, Inc. | Security Agreement |
| Dec 15, 2014 Reel 34510, frame 459 | Treq Labs, Inc.; Venture Lending & Leasing | Treq Labs, Inc. | Assignment of Assignor's Interest |
| Sep 7, 2017 Reel 43522, frame 776 | Treq Labs, Inc. | Snell Holdings, LLC | Assignment of Assignor's Interest |
| Feb 20, 2019 Reel 48387, frame 159 | Barnard, Chris Wilhelm | Vello Systems, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2031
Term ends Jun 7, 2031. Maintenance fees still fall due before then
Note
The 183 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,744,262, ends no earlier than this term, so it caps nothing.
Citations
26
later US patents cite this one
That is top 25% of utility patents granted in 2016 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.