Term ends Sep 30, 2031 · High confidence
20-year base term ends Sep 30, 2031
Held by Sanofi
Filed Mar 4, 2014 as application 14/128,681 · Granted May 19, 2026
Base term, 20 years from filing
Today
2011
2031
Clock starts
Sep 30, 2011
Sep 30, 2011
Term ends
Sep 30, 2031
Sep 30, 2031
Granted
May 19, 2026
May 19, 2026
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,858,418, US 11,644,471, US 12,006,352, US 8,703,135, US 9,683,045, to Sep 30, 2031. The term already ends on or before that date, so the cap shortened nothing.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
22
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 1 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 Sep 30, 2011, when application PCT/EP2011/067132, the earliest non-provisional in its chain, was filed (this one was filed Mar 4, 2014) | Sep 30, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,858,418, US 11,644,471, US 12,006,352, US 8,703,135, US 9,683,045) | resolves to Sep 30, 2031, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 30, 2031 | High confidence |
This family
| US 8,703,135 | In force Sep 2031 | Sep 2031 |
| US 11,644,471 | In force Sep 2031 | Sep 2031 |
| US 12,630,609 | this patent Sep 2031 | Sep 2031 |
| US 9,683,045 | In force Sep 2031 | Sep 2031 |
| US 9,573,992 | In force Sep 2031 | Sep 2031 |
| US 9,346,884 | In force Sep 2031 | Sep 2031 |
| Application 14/698,917 | Abandoned not computed | not computed |
| Application 15/397,313 | Abandoned not computed | not computed |
8 of 22 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 |
|---|---|---|---|
| Mar 5, 2014 Reel 32354, frame 342 | Baumeister, Judith; Bouche, Marie-paule Lucienne Armanda; Boutton, Carlo; Buyse, Marie-ange; Snoeck, Veerle; Staelens, Stephanie | Ablynx N.V. | Assignment of Assignor's Interest |
| May 23, 2018 Reel 45884, frame 497 | Baumeister, Judith; Bouche, Marie-paule Lucienne Armanda; Boutton, Carlo; Buyse, Marie-ange; Snoeck, Veerle; Staelens, Stephanie; Drombrecht, Bruno; Schotte, Peter; Ververken, Cedric Jozef Neotere; Beste, Gerald; Hermans, Guy; Steffensen, Soren; Szyroki, Alexander; Denayer, Tinneke | Ablynx N.V. | Assignment of Assignor's Interest |
| May 10, 2022 Reel 59883, frame 339 | Ablynx N.V. | Sanofi | Assignment of Assignor's 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
Sep 2031
Term ends Sep 30, 2031. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,858,418, US 11,644,471, US 12,006,352, US 8,703,135, US 9,683,045, ends no earlier than this term, so it caps nothing.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.