Term ends Apr 26, 2027 · High confidence
20-year base term ends Apr 26, 2027
Held by Wyeth LLC
Filed Oct 5, 2021 as application 17/494,235 · Granted Feb 18, 2025
Base term plus 506 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2007
2027
Clock starts
Apr 26, 2007
Apr 26, 2007
Term ends
Apr 26, 2027
Apr 26, 2027
Granted
Feb 18, 2025
Feb 18, 2025
base term
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
506
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 11,167,020.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
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 506 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. No maintenance fee can end this term early. 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 26, 2007, when application 11/740,580, the earliest non-provisional in its chain, was filed (this one was filed Oct 5, 2021) | Apr 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +506 days, USPTO patent term adjustment record | Sep 13, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,167,020) | capped to Apr 26, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | Apr 26, 2027 | High confidence |
This family
| US 8,808,707 | In force Feb 2029 | Feb 2029 |
| US 9,669,084 | In force Apr 2027 | Apr 2027 |
| US 10,406,220 | In force Apr 2027 | Apr 2027 |
| US 11,167,020 | In force Apr 2027 | Apr 2027 |
| US 12,226,470 | this patent Apr 2027 | Apr 2027 |
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 2027
Term ends Apr 26, 2027. No further fees fall due before then
Note
The 506 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 11,167,020.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.