Collateral for a security interest recorded May 12, 2026 (Fifth Third Bank, National Association).
Term ends Sep 17, 2032 · High confidence
20-year base term ends Sep 17, 2032
Held by Zev Technologies, LLC
Filed Sep 17, 2012 as application 13/621,713 · Granted Sep 16, 2014
Base term, 20 years from filing
Today
2012
2032
Clock starts
Sep 17, 2012
Sep 17, 2012
Term ends
Sep 17, 2032
Sep 17, 2032
Granted
Sep 16, 2014
Sep 16, 2014
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.
None
Terminal disclaimer
No disclaimer on this record.
3 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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Sep 17, 2012, when this application, 13/621,713, was filed | Sep 17, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 17, 2032 | High confidence |
This family
| US 8,832,983 | this patent Sep 2032 | Sep 2032 |
| US 8,893,422 | Surrendered on reissue Apr 2019 | Apr 2019 |
| US RE47,335 | In force Sep 2032 | Sep 2032 |
| Application 16/369,500 | 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 |
|---|---|---|---|
| Aug 30, 2017 Reel 43447, frame 67 | Wolf, Alec Daniel | Zev Technologies, Inc. | Assignment of Assignor's Interest |
| Aug 30, 2018 Reel 46759, frame 454 | Zev Technologies, Inc. | Hi Zev, LLC | Security Interest |
| Aug 9, 2024 Reel 68237, frame 470 | Hi Zev, LLC | Zev Technologies, Inc. | Release of Security Interest |
| Aug 13, 2024 Reel 68471, frame 588 | Zev Technologies, Inc. | Zev Technologies, LLC | Assignment of Assignor's Interest |
| May 12, 2026 Reel 75562, frame 524 | Silencerco Weapons Research, LLC; Unity Tactical LLC; Zev Technologies, LLC; Syndicate Optics Research, LLC; Sicosyndicate, LLC | Fifth Third Bank, National Association | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Sep 2032
Term ends Sep 17, 2032. No further fees fall due before then
Citations
29
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.