Term ends Jun 25, 2027 · High confidence
20-year base term ended Aug 20, 2024
Held by Nucletron Operations B.V.
Filed Aug 20, 2004 as application 10/921,896 · Granted Jan 31, 2012
Base term plus 1039 days of patent term adjustment (USPTO delay)
Today
2004
2027
Clock starts
Aug 20, 2004
Aug 20, 2004
Term ends
Jun 25, 2027
Jun 25, 2027
Granted
Jan 31, 2012
Jan 31, 2012
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,039
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.
3
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 1039 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 Aug 20, 2004, when this application, 10/921,896, was filed | Aug 20, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1039 days, USPTO patent term adjustment record | Jun 25, 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 | Jun 25, 2027 | High confidence |
This family
| US 8,105,238 | this patent Jun 2027 | Jun 2027 |
| US 9,730,608 | Lapsed on the fee record Aug 2025 | Aug 2025 |
| US 10,806,369 | Term ended no later than Mar 2026 | no later than Mar 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 |
|---|---|---|---|
| Oct 19, 2004 Reel 15899, frame 741 | Van Der Lugt, Wilco; Schuurman, Jeroen; Henning, Johan; Kwa, Stefan; Kindlein, Johann | Nucletron B.V. | Assignment of Assignor's Interest |
| Jul 12, 2012 Reel 28539, frame 494 | Nucletron B.V. | Nucletron Operations B.V. | Change of Name |
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
Jun 2027
Term ends Jun 25, 2027. No further fees fall due before then
Note
The 1039 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
30
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.