Term ends Jun 11, 2028 · Medium confidence
20-year base term ends Jun 11, 2028
Why Medium: A parent in the chain could not be resolved.
Held by Lightsense IP Ltd.
Filed Jun 2, 2015 as application 14/728,414 · Granted May 31, 2016
Base term, 20 years from filing
Today
2008
2028
Clock starts
Jun 11, 2008
Jun 11, 2008
Term ends
Jun 11, 2028
Jun 11, 2028
Granted
May 31, 2016
May 31, 2016
base term
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
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: 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 Jun 11, 2008, when application 12/136,943, the earliest non-provisional in its chain, was filed (this one was filed Jun 2, 2015); a parent in its chain could not be resolved (the next row) | Jun 11, 2028 | 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 | 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 | Jun 11, 2028 | Medium confidence |
This family
| US 8,187,256 | In force (reinstated) Mar 2031 | Mar 2031 |
| US 8,915,907 | In force Sep 2028 | Sep 2028 |
| US 9,247,995 | In force Jun 2028 | Jun 2028 |
| US 9,351,794 | this patent Jun 2028 | Jun 2028 |
4 of 5 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Jun 8, 2016 Reel 38848, frame 582 | Trustees of Princeton University | Suckewer, Szymon; Smits, Alexander; Hubert, Steven | Assignment of Assignor's Interest |
| Jun 8, 2016 reel/frame not recorded | Trustees of Princeton University | Suckewer, Szymon | Assignment of Assignor's Interest |
| Jun 8, 2016 reel/frame not recorded | Trustees of Princeton University | Smits, Alexander | Assignment of Assignor's Interest |
| Jun 8, 2016 reel/frame not recorded | Trustees of Princeton University | Hubert, Steven | Assignment of Assignor's Interest |
| Jun 11, 2016 Reel 38890, frame 987 | Suckuwer, Szymon | Lightsenseip LLP | Assignment of Assignor's Interest |
| Jun 13, 2016 Reel 38899, frame 516 | Smits, Alexander, Smit | Lightsenseip LLP | Assignment of Assignor's Interest |
| Jun 26, 2016 Reel 39010, frame 639 | Hubert, Steven | Lightsense IP Ltd. | Assignment of Assignor's Interest |
| Jun 28, 2016 Reel 39185, frame 821 | Suckewer, Szymon | Lightsense IP Ltd. | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 038890 Frame 0987. Assignor(S) Hereby Confirms the Lightsenseip LTD. |
| Jun 28, 2016 Reel 39196, frame 53 | Smits, Alexander | Lightsense IP Ltd. | Corrective Assignment to Correct the Assignee Name Previously Recorded at Reel: 038899 Frame: 0516. Assignor(S) Hereby Confirms the Assignment. |
| Dec 10, 2020 Reel 54678, frame 573 | Lightsense IP Ltd. | Lightsense IP Ltd. | Change of Address Effective 08/24/2017 |
| Dec 10, 2020 Reel 54678, frame 678 | Lightsense IP Ltd. | Lightsense IP Ltd. | Change of Address Effective 05/08/2019 |
| Jan 21, 2021 Reel 55067, frame 514 | Lightsense IP Ltd. | Kreos Capital VI (UK) Limited | Security Interest |
| Dec 11, 2025 Reel 73185, frame 266 | Kreos Capital VI (UK) Limited | Lightsense IP Ltd. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jun 2028
Term ends Jun 11, 2028. Maintenance fees still fall due before then
Citations
15
later US patents cite this one
That is top 25% of utility patents granted in 2016 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.