Term ends Apr 19, 2039 · High confidence
20-year base term ends Apr 19, 2039
Held by Elios Vision, Inc.
Filed Apr 19, 2019 as application 16/389,446 · Granted Jun 13, 2023
Base term plus 811 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2019
2039
Clock starts
Apr 19, 2019
Apr 19, 2019
Term ends
Apr 19, 2039
Apr 19, 2039
Granted
Jun 13, 2023
Jun 13, 2023
base term
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
811
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,464,677, US 11,672,475.
0 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 811 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 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 Apr 19, 2019, when this application, 16/389,446, was filed | Apr 19, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +811 days, USPTO patent term adjustment record | Jul 8, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,464,677, US 11,672,475) | capped to Apr 19, 2039 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 19, 2039 | High confidence |
This family
| US 11,672,475 | this patent Apr 2039 | Apr 2039 |
| Application PCT/US2020/028970 | PCT application no patent term | no patent term |
| US 11,464,677 | In force Apr 2039 | Apr 2039 |
| US 12,507,949 | In force Apr 2039 | Apr 2039 |
| Application 19/428,671 | 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 |
|---|---|---|---|
| Apr 13, 2020 Reel 52379, frame 813 | Junger, Johannes; Enders, Markus | Elt Sight, Inc. | Assignment of Assignor's Interest |
| Sep 14, 2021 Reel 57511, frame 969 | Elt Sight, Inc. | Elios Vision, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Apr 2039
Term ends Apr 19, 2039. Maintenance fees still fall due before then
Note
The 811 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,464,677, US 11,672,475.
Citations
25
later US patents cite this one
That is top 5% of utility patents granted in 2023 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.