Collateral for a security interest recorded Aug 1, 2024 (Espresso Capital Ltd.).
Term ends Dec 5, 2035 · High confidence
20-year base term ends Oct 7, 2035
Held by Lightbend, Inc.
Filed Oct 7, 2015 as application 14/877,923 · Granted Apr 16, 2019
Base term plus 59 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Oct 7, 2015
Oct 7, 2015
Term ends
Dec 5, 2035
Dec 5, 2035
Granted
Apr 16, 2019
Apr 16, 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
59
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
3
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 59 days past its 20-year base term on 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 Oct 7, 2015, when this application, 14/877,923, was filed | Oct 7, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +59 days, USPTO patent term adjustment record | Dec 5, 2035 | 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 | Dec 5, 2035 | High confidence |
This family
| Application 62/107,340 | Provisional application no patent term | no patent term |
| US 10,261,851 | this patent Dec 2035 | Dec 2035 |
| US 11,150,974 | In force Nov 2035 | Nov 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 |
|---|---|---|---|
| Oct 9, 2015 Reel 36766, frame 164 | Velipasaoglu, Omer Emre; Surana, Vishal; Sasturkar, Amit | Opsclarity, Inc. | Assignment of Assignor's Interest |
| Feb 22, 2018 Reel 45011, frame 525 | Lightbend, Inc. | Hercules Capital, Inc., as Agent | Security Interest |
| Apr 11, 2018 Reel 45511, frame 311 | Opsclarity, Inc. | Lightbend, Inc. | Assignment of Assignor's Interest |
| Nov 5, 2020 Reel 54283, frame 387 | Lightbend, Inc. | NH Expansion Credit Fund Holdings LP | Security Interest |
| Feb 22, 2021 Reel 55358, frame 862 | Hercules Capital, Inc. | Lightbend, Inc. | Release of Security Interest |
| Mar 24, 2021 Reel 55707, frame 278 | Lightbend, Inc. | Comerica Bank | Security Interest |
| Aug 1, 2024 Reel 68233, frame 670 | Lightbend, Inc. | Espresso Capital Ltd. | Intellectual Property Security Agreement |
| Aug 6, 2024 Reel 68202, frame 17 | NH Expansion Credit Fund Holdings LP | Lightbend, Inc. | Release of Security Interest |
| Aug 15, 2024 Reel 68299, frame 618 | Lightbend, Inc. | Comerica Bank | Security Interest |
| Jun 11, 2025 Reel 71557, frame 332 | Lightbend, Inc. | Espresso Capital Ltd. | First Amended and Restated Intellectual Property Security Agreement |
| Feb 25, 2026 Reel 73891, frame 63 | Comerica Bank | Lightbend, 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
Dec 2035
Term ends Dec 5, 2035. Maintenance fees still fall due before then
Note
The 59 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
220
later US patents cite this one
That is top 1% 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.