Term ends Apr 20, 2032 · Medium confidence
20-year base term ends Apr 20, 2032
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 10,597,428), so the cap could be lower.
Held by Wyeth LLC
Filed Jul 12, 2017 as application 15/648,092 · Granted Sep 15, 2020
Base term, 20 years from filing
Today
2012
2032
Clock starts
Apr 20, 2012
Apr 20, 2012
Term ends
Apr 20, 2032
Apr 20, 2032
Granted
Sep 15, 2020
Sep 15, 2020
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,597,428, to Apr 20, 2032. The term already ends on or before that date, so the cap shortened nothing.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
13
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. 1 of 2 maintenance fees is 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 Apr 20, 2012, when application 13/451,631, the earliest non-provisional in its chain, was filed (this one was filed Jul 12, 2017) | Apr 20, 2032 | 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 10,597,428) | resolves to Apr 20, 2032, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 20, 2032 | Medium confidence |
This family
| US 8,481,692 | Surrendered on reissue Dec 2021 | Dec 2021 |
| US 8,557,548 | Surrendered on reissue Apr 2017 | Apr 2017 |
| US 8,900,597 | Surrendered on reissue Aug 2017 | Aug 2017 |
| US 9,745,354 | In force Apr 2032 | Apr 2032 |
| US 9,187,536 | Surrendered on reissue Dec 2021 | Dec 2021 |
| US RE46,376 | In force Apr 2032 | Apr 2032 |
| US RE46,518 | In force Apr 2032 | Apr 2032 |
| US 10,774,117 | this patent Apr 2032 | Apr 2032 |
8 of 13 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 27, 2023 Reel 63165, frame 455 | Wyeth LLC | Wyeth LLC | Assignee Address Correction |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Apr 2032
Term ends Apr 20, 2032. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,597,428, ends no earlier than this term, so it caps nothing.
Citations
4
later US patents cite this one
That is above the median of utility patents granted in 2020 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.