Lapsed Jul 18, 2025 on the fee record · Medium confidence
20-year base term ended Oct 30, 2026
Why Medium: A parent in the chain could not be resolved.
Second maintenance fee unpaid; grace period ended.
Held by Arcelormittal
Filed Sep 15, 2012 as application 13/621,015 · Granted Jul 18, 2017
Base term, 20 years from filing, plus 287 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 18, 2025
2006
2027
Clock starts
Oct 30, 2006
Oct 30, 2006
No longer in force
Jul 18, 2025
Jul 18, 2025
Granted
Jul 18, 2017
Jul 18, 2017
Term would have run to
Aug 13, 2027
Aug 13, 2027
base term
patent term adjustment
after the term ends
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
287
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
14
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 Aug 13, 2027: its 20-year base term plus 287 days of term adjustment for prosecution delay. 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 Oct 30, 2006, when application PCT/IB2006/004019, the earliest non-provisional in its chain, was filed (this one was filed Sep 15, 2012); a parent in its chain could not be resolved (the next row) | Oct 30, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +287 days, USPTO patent term adjustment record | Aug 13, 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 | 1 of 2 maintenance fees paid | lapsed Jul 18, 2025 | High confidence |
| Computed term end | The steps above, in order | Jul 18, 2025 | Medium confidence |
This family
| US 8,307,680 | In force Mar 2027 | Mar 2027 |
| US 9,708,683 | this patent Jul 2025 | Jul 2025 |
| US 10,550,447 | In force May 2027 | May 2027 |
| US 11,041,226 | Term ended Oct 2026 | Oct 2026 |
| US 10,590,507 | Term ended Oct 2026 | Oct 2026 |
| US 10,961,602 | Term ended Oct 2026 | Oct 2026 |
| US 10,597,747 | Term ended Oct 2026 | Oct 2026 |
| US 10,577,674 | Term ended Oct 2026 | Oct 2026 |
8 of 14 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 |
|---|---|---|---|
| Jun 12, 2017 Reel 42677, frame 694 | Drillet, Pascal; Spehner, Dominique; Kefferstein, Ronald | Arcelormittal France | Assignment of Assignor's Interest |
| Mar 22, 2019 Reel 48673, frame 772 | Arcelormittal France | Arcelormittal | 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
Note
The 287 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
12
later US patents cite this one
That is above the median of utility patents granted in 2017 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.