Lapsed Jun 1, 2025 on the fee record · High confidence
20-year base term ends Jul 7, 2037
First maintenance fee unpaid; grace period ended.
Held by Pfizer Inc.
Filed May 20, 2019 as application 16/417,174 · Granted Jun 1, 2021
Base term, 20 years from filing
Today
Lapsed Jun 1, 2025
2017
2037
Clock starts
Jul 7, 2017
Jul 7, 2017
No longer in force
Jun 1, 2025
Jun 1, 2025
Granted
Jun 1, 2021
Jun 1, 2021
Term would have run to
Jul 7, 2037
Jul 7, 2037
base term
after the term ends
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,294,289, to Jul 7, 2037. The term already ends on or before that date, so the cap shortened nothing.
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.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jul 7, 2037: 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. 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 Jul 7, 2017, when application PCT/EP2017/067119, the earliest non-provisional in its chain, was filed (this one was filed May 20, 2019) | Jul 7, 2037 | 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 10,294,289) | resolves to Jul 7, 2037, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed Jun 1, 2025 | High confidence |
| Computed term end | The steps above, in order | Jun 1, 2025 | High confidence |
This family
| US 10,294,289 | In force Jul 2037 | Jul 2037 |
| US 11,021,528 | this patent Jun 2025 | Jun 2025 |
| US 11,697,678 | In force Oct 2037 | Oct 2037 |
3 of 4 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 |
|---|---|---|---|
| Apr 21, 2020 Reel 52449, frame 361 | Gouze, Elvire | Therachon SAS; Inserm (Institut National de la Sante et de la Recherche Medicale); Université Nice Sophia Antipolis | Assignment of Assignor's Interest |
| Apr 21, 2020 reel/frame not recorded | Gouze, Elvire | Therachon SAS | Assignment of Assignor's Interest |
| Apr 21, 2020 reel/frame not recorded | Gouze, Elvire | Inserm (Institut National de la Sante et de la Recherche Medicale) | Assignment of Assignor's Interest |
| Apr 21, 2020 reel/frame not recorded | Gouze, Elvire | Université Nice Sophia Antipolis | Assignment of Assignor's Interest |
| Apr 23, 2020 Reel 52473, frame 91 | Garcia, Stéphanie | Therachon SAS | Assignment of Assignor's Interest |
| Apr 24, 2020 Reel 52483, frame 869 | Therachon Holding GmbH | Pfizer Inc. | Assignment of Assignor's Interest |
| Apr 24, 2020 Reel 52483, frame 884 | Therachon SAS | Therachon Holding GmbH | Assignment of Assignor's Interest |
| Apr 24, 2020 Reel 52483, frame 898 | Communauté d'Universités et Établissements Université Côte d'Azur; Université Nice Sophia Antipolis | Université Côte d'Azur | 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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,294,289, ends no earlier than this term, so it caps nothing.
Citations
6
later US patents cite this one
That is top 25% of utility patents granted in 2021 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.