Also listed on Sigma Additive Solutions, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jan 30, 2025 (Rochefort Management LLC).
Term ends Aug 21, 2035 · High confidence
20-year base term ends Aug 21, 2035
Held by Divergent Technologies, Inc.
Filed Nov 17, 2023 as application 18/512,691 · Granted Dec 24, 2024
Base term, 20 years from filing
Today
2015
2035
Clock starts
Aug 21, 2015
Aug 21, 2015
Term ends
Aug 21, 2035
Aug 21, 2035
Granted
Dec 24, 2024
Dec 24, 2024
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
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. 0 of 2 maintenance fees are 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 Aug 21, 2015, when application 14/832,691, the earliest non-provisional in its chain, was filed (this one was filed Nov 17, 2023) | Aug 21, 2035 | 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 | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 21, 2035 | High confidence |
This family
| US 9,999,924 | In force May 2036 | May 2036 |
| US 11,135,654 | In force Aug 2035 | Aug 2035 |
| US 11,607,875 | In force Aug 2035 | Aug 2035 |
| US 11,858,207 | In force Aug 2035 | Aug 2035 |
| US 12,172,371 | this patent Aug 2035 | Aug 2035 |
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 |
|---|---|---|---|
| Nov 17, 2023 Reel 65603, frame 691 | Dave, Vivek R.; Madigan, R. Bruce; Cola, Mark J.; Piltch, Martin S. | Sigma Labs, Inc. | Assignment of Assignor's Interest |
| Nov 17, 2023 Reel 65625, frame 608 | Sigma Labs, Inc. | Sigma Additive Solutions, Inc. | Change of Name |
| Feb 6, 2024 Reel 66507, frame 748 | Sigma Labs, Inc. | Divergent Technologies, Inc. | Assignment of Assignor's Interest |
| May 30, 2024 Reel 67569, frame 171 | Divergent Technologies, Inc. | Western Alliance Bank | Security Interest |
| Jun 28, 2024 Reel 67984, frame 439 | Sigma Additive Solutions, Inc. | Divergent Technologies, Inc. | Corrective Assignment to Correct the Assignor Name from Sigma Labs, Inc.to Sigma Additive Solutions, Inc. Previously Recorded on Reel 66507 Frame 748. Assignor(S) Hereby Confirms the Original Assignment. |
| Jan 29, 2025 Reel 70048, frame 543 | Western Alliance Bank | Divergent Technologies, Inc. | Release of Security Interest |
| Jan 30, 2025 Reel 70074, frame 290 | Divergent Technologies, Inc.; CZV, Inc. | Rochefort Management LLC | Security Interest |
| Sep 3, 2025 Reel 73006, frame 590 | Rochefort Management LLC | Acquiom Agency Services 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.
What's changing
Aug 2035
Term ends Aug 21, 2035. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.