Term ends Jun 25, 2031 · Medium confidence
20-year base term ends Apr 15, 2031
Why Medium: A parent in the chain could not be resolved.
Held by Azumo, Inc.
Filed May 5, 2017 as application 15/587,703 · Granted Feb 26, 2019
Base term plus 71 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Apr 15, 2011
Apr 15, 2011
Term ends
Jun 25, 2031
Jun 25, 2031
Granted
Feb 26, 2019
Feb 26, 2019
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
71
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 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.
8
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 71 days past its 20-year base term on prosecution delay. 1 of 3 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 Apr 15, 2011, when application 13/088,167, the earliest non-provisional in its chain, was filed (this one was filed May 5, 2017); a parent in its chain could not be resolved (the next row) | Apr 15, 2031 | 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 | +71 days, USPTO patent term adjustment record | Jun 25, 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 25, 2031 | Medium confidence |
This family
| US 9,028,123 | In force Feb 2032 | Feb 2032 |
| US 9,557,473 | In force (reinstated) Jul 2031 | Jul 2031 |
| US 9,651,729 | In force (reinstated) Jun 2031 | Jun 2031 |
| US 10,215,905 | this patent Jun 2031 | Jun 2031 |
| US 10,802,196 | In force (reinstated) Apr 2031 | Apr 2031 |
| US 11,275,204 | In force Apr 2031 | Apr 2031 |
| US 11,828,966 | In force no later than Apr 2031 | no later than Apr 2031 |
| US 12,366,698 | In force Apr 2031 | Apr 2031 |
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 |
|---|---|---|---|
| Feb 1, 2018 Reel 44804, frame 246 | Nichol, Anthony John; Coleman, Zane Arthur | Flex Lighting II, LLC | Assignment of Assignor's Interest |
| Sep 12, 2022 Reel 61065, frame 860 | Azumo, Inc. | Venture Lending & Leasing IX, Inc.; Wti Fund X, Inc. | Security Interest |
| Sep 12, 2022 reel/frame not recorded | Azumo, Inc. | Venture Lending & Leasing IX, Inc. | Security Interest |
| Sep 12, 2022 reel/frame not recorded | Azumo, Inc. | Wti Fund X, Inc. | Security Interest |
| Dec 17, 2025 Reel 74291, frame 241 | Flex Lighting II, LLC | Azumo, Inc. | Change of Name |
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 25, 2031.
Note
The 71 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
36
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.