Collateral for a security interest recorded Jun 9, 2021 (Wells Fargo Bank, National Association, a National Banking Association).
Term ends Feb 7, 2027 · High confidence
20-year base term ended Jun 26, 2026
Held by Kaiser Aluminum Warrick, LLC
Filed Jun 26, 2006 as application 11/474,581 · Granted May 3, 2011
Base term plus 226 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jun 26, 2006
Jun 26, 2006
Term ends
Feb 7, 2027
Feb 7, 2027
Granted
May 3, 2011
May 3, 2011
base term
patent term adjustment
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
226
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
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 226 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jun 26, 2006, when this application, 11/474,581, was filed | Jun 26, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +226 days, USPTO patent term adjustment record | Feb 7, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 7, 2027 | High confidence |
This family
| US 7,934,410 | this patent Feb 2027 | Feb 2027 |
| Application PCT/US2007/070083 | PCT application no patent term | no patent term |
| Application PCT/US2007/072091 | PCT application no patent term | no patent term |
| US 7,954,354 | Term ended Jun 2026 | Jun 2026 |
| US 8,555,692 | Term ended Jun 2026 | Jun 2026 |
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 |
|---|---|---|---|
| Jul 31, 2006 Reel 18023, frame 913 | Myers, Gary L.; Fedusa, Anthony; Dick, Robert E. | Alcoa Corporate Center | Assignment of Assignor's Interest |
| Aug 16, 2006 Reel 18126, frame 638 | Myers, Gary L.; Fedusa, Anthony; Dick, Robert E. | Alcoa Inc. | Corrective Assignment to Correct the Assignee's Name and Address Previously Recorded on Reel 018023, Frame 0913. Assignor Hereby Confirms the Assignment of the Entire Interest. |
| Nov 3, 2016 Reel 40556, frame 141 | Alcoa Inc. | Alcoa USA Corp. | Assignment of Assignor's Interest |
| Jan 27, 2017 Reel 41521, frame 521 | Alcoa USA Corp. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Apr 2, 2021 Reel 55812, frame 759 | JPMorgan Chase Bank, N.A., as Administrative Agent | Alcoa USA Corp. | Release of Security Interest |
| May 12, 2021 Reel 56209, frame 411 | Alcoa USA Corp. | Alcoa Warrick LLC | Assignment of Assignor's Interest |
| May 12, 2021 Reel 56209, frame 464 | Alcoa Warrick LLC | Kaiser Aluminum Warrick, LLC | Change of Name |
| Jun 9, 2021 Reel 56490, frame 29 | Kaiser Aluminum Warrick, LLC | Wells Fargo Bank, National Association, a National Banking Association | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2027
Term ends Feb 7, 2027. No further fees fall due before then
Note
The 226 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
68
later US patents cite this one
That is top 10% of utility patents granted in 2011 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.