Lapsed Jun 11, 2025 on the fee record · Medium confidence
20-year base term ends Oct 24, 2028
Why Medium: A parent in the chain could not be resolved.
Third maintenance fee unpaid; grace period ended.
Held by ASML Netherlands B.V.
Filed Apr 14, 2011 as application 13/087,207 · Granted Jun 11, 2013
Base term, 20 years from filing, plus 44 days of patent term adjustment (USPTO delay)
Today
Lapsed Jun 11, 2025
2008
2028
Clock starts
Oct 24, 2008
Oct 24, 2008
No longer in force
Jun 11, 2025
Jun 11, 2025
Granted
Jun 11, 2013
Jun 11, 2013
Term would have run to
Dec 7, 2028
Dec 7, 2028
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
44
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
4
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 Dec 7, 2028: its 20-year base term plus 44 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 24, 2008, when application 12/288,970, the earliest non-provisional in its chain, was filed (this one was filed Apr 14, 2011); a parent in its chain could not be resolved (the next row) | Oct 24, 2028 | 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 | +44 days, USPTO patent term adjustment record | Dec 7, 2028 | 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 | 2 of 3 maintenance fees paid | lapsed Jun 11, 2025 | High confidence |
| Computed term end | The steps above, in order | Jun 11, 2025 | Medium confidence |
This family
| US 7,439,530 | In force Jan 2027 | Jan 2027 |
| US 7,482,609 | Term ended Nov 2026 | Nov 2026 |
| US 8,461,560 | this patent Jun 2025 | Jun 2025 |
3 of 4 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 |
|---|---|---|---|
| Apr 15, 2011 Reel 26137, frame 918 | Ershov, Alexander I.; Bykanov, Alexander N.; Khodykin, Oleh; Fomenkov, Igor V. | Cymer, Inc. | Assignment of Assignor's Interest |
| Mar 12, 2014 Reel 32416, frame 794 | Cymer, Inc. | Cymer, LLC | Merger |
| Apr 23, 2014 Reel 32745, frame 216 | Cymer, LLC | ASML Netherlands B.V. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 44 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 2013 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.