Term ends Feb 3, 2028 · High confidence
20-year base term ends Dec 6, 2026
Held by Dialight Corporation
Filed Dec 6, 2006 as application 11/567,710 · Granted Jun 8, 2010
Base term plus 424 days of patent term adjustment (USPTO delay)
Today
2006
2028
Clock starts
Dec 6, 2006
Dec 6, 2006
Term ends
Feb 3, 2028
Feb 3, 2028
Granted
Jun 8, 2010
Jun 8, 2010
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
424
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 424 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 Dec 6, 2006, when this application, 11/567,710, was filed | Dec 6, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +424 days, USPTO patent term adjustment record | Feb 3, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 3, 2028 | High confidence |
This family
| US 7,731,384 | this patent Feb 2028 | Feb 2028 |
| US 8,066,400 | In force Dec 2026 | Dec 2026 |
| US 8,480,249 | In force Dec 2026 | Dec 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 |
|---|---|---|---|
| Aug 28, 2007 Reel 19757, frame 690 | Curran, John W.; Peck, John P.; Hebborn, Kevin A.; Leib, William S., III | Dialight Corporation | Assignment of Assignor's Interest |
| Jun 4, 2008 Reel 21041, frame 605 | Curran, John W.; Peck, John P.; Hebborn, Kevin A.; Leib, William S., III; Verdes, Anthony | Dialight Corporation | Assignment of Assignor's Interest |
| Jul 21, 2022 Reel 60803, frame 351 | Dialight Corporation | HSBC UK Bank PLC, as Security Agent | Security Interest |
| Apr 24, 2026 Reel 75458, frame 34 | HSBC UK Bank PLC | Dialight Corporation | Release of 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.
What's changing
Feb 2028
Term ends Feb 3, 2028. No further fees fall due before then
Note
The 424 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.