Term ends Jun 18, 2037 · High confidence
20-year base term ends Apr 6, 2037
Held by Keranova
Filed Dec 17, 2021 as application 17/554,049 · Granted Aug 8, 2023
Base term plus 73 days of patent term adjustment (USPTO delay)
Today
2017
2037
Clock starts
Apr 6, 2017
Apr 6, 2017
Term ends
Jun 18, 2037
Jun 18, 2037
Granted
Aug 8, 2023
Aug 8, 2023
base term
patent term adjustment
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
73
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
28
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 73 days past its 20-year base term on prosecution delay. 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 6, 2017, when application PCT/EP2017/058224, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2021) | Apr 6, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +73 days, USPTO patent term adjustment record | Jun 18, 2037 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 18, 2037 | High confidence |
This family
| US 11,351,062 | In force Oct 2036 | Oct 2036 |
| US 11,234,864 | In force Oct 2038 | Oct 2038 |
| US 11,452,637 | In force Aug 2037 | Aug 2037 |
| US 10,832,801 | In force Nov 2037 | Nov 2037 |
| Application 16/301,908 | Abandoned not computed | not computed |
| Application 16/964,234 | Abandoned not computed | not computed |
| US 11,974,569 | In force Nov 2040 | Nov 2040 |
| US 11,717,445 | this patent Jun 2037 | Jun 2037 |
8 of 28 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 |
|---|---|---|---|
| Dec 17, 2021 Reel 58415, frame 777 | Romano, Fabrizio; Bernard, Aurelien; Mauclair, Cyril; Baubeau, Emmanuel | Keranova | Assignment of Assignor's Interest |
| Dec 17, 2021 Reel 58612, frame 187 | Keranova | Universite Jean Monnet Saint Etienne; Centre National de la Recherche Scientifique; Keranova | Keranova Is Assigning 5% to Ujm and 5% to CNRS. Keranova Will Now Own 90% of Interest. |
| Dec 17, 2021 reel/frame not recorded | Keranova | Universite Jean Monnet Saint Etienne | Keranova Is Assigning 5% to Ujm and 5% to CNRS. Keranova Will Now Own 90% of Interest. |
| Dec 17, 2021 reel/frame not recorded | Keranova | Centre National de la Recherche Scientifique | Keranova Is Assigning 5% to Ujm and 5% to CNRS. Keranova Will Now Own 90% of Interest. |
| Dec 17, 2021 reel/frame not recorded | Keranova | Keranova | Keranova Is Assigning 5% to Ujm and 5% to CNRS. Keranova Will Now Own 90% of 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.
What's changing
Jun 2037
Term ends Jun 18, 2037. Maintenance fees still fall due before then
Note
The 73 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median 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.