Term ends no later than Apr 28, 2034 · Medium confidence
20-year base term ends Feb 12, 2033
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Uplight, Inc.
Filed Mar 25, 2016 as application 15/081,807 · Granted Aug 13, 2019
Base term plus 440 days of patent term adjustment (USPTO delay)
Today
2013
2034
Clock starts
Feb 12, 2013
Feb 12, 2013
Ends no later than
Apr 28, 2034
Apr 28, 2034
Granted
Aug 13, 2019
Aug 13, 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
440
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
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 runs 440 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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 Feb 12, 2013, when application 13/765,623, the earliest non-provisional in its chain, was filed (this one was filed Mar 25, 2016) | Feb 12, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +440 days, USPTO patent term adjustment record | Apr 28, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Apr 28, 2034 | Medium confidence |
This family
| US 9,310,815 | In force May 2034 | May 2034 |
| US 10,379,508 | this patent no later than Apr 2034 | no later than Apr 2034 |
| US 11,042,141 | Lapsed on the fee record Jun 2025 | Jun 2025 |
| US 11,892,182 | In force no later than Jul 2033 | no later than Jul 2033 |
| Application 18/421,195 | Pending 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 |
|---|---|---|---|
| Jul 11, 2016 Reel 39121, frame 300 | Shiflet, Eric M | Tendril Networks, Inc. | Assignment of Assignor's Interest |
| Feb 9, 2018 Reel 45297, frame 761 | Tendril Networks, Inc. | Eicf Agent LLC | Security Agreement |
| Nov 5, 2018 Reel 47414, frame 864 | Tendril Networks, Inc. | Tendril Oe, LLC | Assignment of Assignor's Interest |
| Nov 30, 2018 Reel 47645, frame 764 | Eicf Agent LLC | Tendril Networks, Inc. | Release of Security Interest |
| Dec 4, 2018 Reel 47666, frame 510 | Eicf Agent LLC | Tendril Networks, Inc. | Release of Security Interest |
| Jun 11, 2019 Reel 49436, frame 401 | Tendril Ea, LLC; Tendril Oe, LLC; Energysavvy Inc. | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Aug 20, 2019 Reel 50110, frame 584 | Tendril Networks, Inc. | Uplight, Inc. | Change of Name |
| Jul 2, 2024 Reel 67894, frame 622 | Wells Fargo Bank, National Association | Tendril Ea, LLC; Tendril Oe, LLC; Energysavvy Inc. | Release of Security Interest |
| Jul 2, 2024 reel/frame not recorded | Wells Fargo Bank, National Association | Tendril Ea, LLC | Release of Security Interest |
| Jul 2, 2024 reel/frame not recorded | Wells Fargo Bank, National Association | Tendril Oe, LLC | Release of Security Interest |
| Jul 2, 2024 reel/frame not recorded | Wells Fargo Bank, National Association | Energysavvy Inc. | Release of Security Interest |
| Aug 5, 2024 Reel 68183, frame 935 | Uplight, Inc.; Tendril Intermediate Holdings, LLC; Tendril Midco, LLC; Tendril Ea, LLC; Tendril Oe, LLC; Energysavvy Inc.; Firstfuel Software, Inc.; Simple Energy, Inc.; Agentis, Inc.; Trafalgar Holdco LLC; Autogrid Systems, Inc.; Energy AI Systems Inc. | Midcap Funding IV Trust | Security Interest |
| Dec 31, 2024 Reel 69710, frame 614 | Tendril Oe, LLC | Uplight, Inc. | Assignment of Assignor's Interest |
| Sep 1, 2026 Reel 75870, frame 98 | Midcap Funding IV Trust | Uplight, Inc.; Tendril Intermediate Holdings, LLC; Tendril Midco, LLC; Tendril Ea, LLC; Tendril Oe, LLC; Energysavvy Inc.; Firstfuel Software, Inc.; Simple Energy, Inc.; Agentis, Inc.; Trafalgar Holdco LLC; Autogrid Systems, Inc.; Energy AI Systems Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Uplight, Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Tendril Intermediate Holdings, LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Tendril Midco, LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Tendril Ea, LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Tendril Oe, LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Energysavvy Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Firstfuel Software, Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Simple Energy, Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Agentis, Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Trafalgar Holdco LLC | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Autogrid Systems, Inc. | Release of Security Interest |
| Sep 1, 2026 reel/frame not recorded | Midcap Funding IV Trust | Energy AI Systems Inc. | 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
Apr 2034
Term ends no later than Apr 28, 2034. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 440 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Apr 28, 2034. We will not guess the cap.
Citations
17
later US patents cite this one
That is top 25% 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.