Term ends May 27, 2027 · Medium confidence
20-year base term ended Oct 30, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Arcelormittal
Filed May 26, 2017 as application 15/606,770 · Granted Feb 4, 2020
Base term plus 209 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Oct 30, 2006
Oct 30, 2006
Term ends
May 27, 2027
May 27, 2027
Granted
Feb 4, 2020
Feb 4, 2020
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
209
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 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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.
This patent's term runs 209 days past its 20-year base term on prosecution delay. 1 of 1 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 Oct 30, 2006, when application PCT/IB2006/004019, the earliest non-provisional in its chain, was filed (this one was filed May 26, 2017); 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 | +209 days, USPTO patent term adjustment record | May 27, 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 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 27, 2027 | Medium confidence |
This family
| US 8,307,680 | In force Mar 2027 | Mar 2027 |
| US 9,708,683 | Lapsed on the fee record Jul 2025 | Jul 2025 |
| US 10,550,447 | this patent 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 |
|---|---|---|---|
| Jul 26, 2018 Reel 46472, frame 748 | Drillet, Pascal; Kefferstein, Ronald | Arcelormittal | Assignment of Assignor's Interest |
| Jul 15, 2019 Reel 49749, frame 187 | Spehner, Dominique | Arcelormittal France | Assignment of Assignor's Interest |
| Jul 15, 2019 Reel 49749, frame 673 | 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
May 2027
Term ends May 27, 2027. No further fees fall due before then
Note
The 209 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
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.