Also listed on Lumigrow, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 22, 2036 · High confidence
20-year base term ends Jan 22, 2036
Held by Signify Holding B.V.
Filed Jan 22, 2016 as application 15/004,320 · Granted May 29, 2018
Base term, 20 years from filing
Today
2016
2036
Clock starts
Jan 22, 2016
Jan 22, 2016
Term ends
Jan 22, 2036
Jan 22, 2036
Granted
May 29, 2018
May 29, 2018
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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.
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. 2 of 3 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 Jan 22, 2016, when this application, 15/004,320, was filed | Jan 22, 2036 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 22, 2036 | High confidence |
This family
| US 9,986,621 | this patent Jan 2036 | Jan 2036 |
| US 10,660,170 | In force Jan 2036 | Jan 2036 |
| US 10,652,969 | In force Jan 2036 | Jan 2036 |
| Application 16/844,935 | Abandoned not computed | not computed |
| Application 16/868,301 | 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 10, 2017 Reel 43262, frame 795 | Lumigrow, Inc. | Windsail Credit Fund, L.P., as Administrative Agent | Security Interest |
| Mar 29, 2018 Reel 45388, frame 827 | Wells, Kevin T. | Lumigrow, Inc. | Assignment of Assignor's Interest |
| May 26, 2020 Reel 52753, frame 163 | Lumigrow, Inc. | Windsail Capital Fund, L.p. | Security Interest |
| May 19, 2022 Reel 60119, frame 394 | Windsail Credit Fund, L.p. | Windsail Capital Fund, L.p. | Assignment of Security Interest |
| May 19, 2022 Reel 60119, frame 641 | Windsail Capital Fund, L.P., as Secured Party | Agtech Holdings, Inc. | Foreclosure Sale |
| Sep 27, 2022 Reel 61225, frame 294 | Agtech Holdings, Inc. | Signify Holding B.V. | Assignment of Assignor's Interest |
| Sep 27, 2022 Reel 61225, frame 425 | Windsail Capital Fund, L.p. | Signify Holding B.V. | Release of 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
Jan 2036
Term ends Jan 22, 2036. Maintenance fees still fall due before then
Citations
23
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.