Also listed on The Invention Science Fund I, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 2, 2026 · Medium confidence
20-year base term ended Feb 16, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Enterprise Science Fund, LLC
Filed Oct 14, 2008 as application 12/287,927 · Granted Dec 28, 2010
Base term plus 289 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Feb 16, 2006
Feb 16, 2006
Term ends
Dec 2, 2026
Dec 2, 2026
Granted
Dec 28, 2010
Dec 28, 2010
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
289
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.
7
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 289 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Feb 16, 2006, when application 11/355,918, the earliest non-provisional in its chain, was filed (this one was filed Oct 14, 2008); a parent in its chain could not be resolved (the next row) | Feb 16, 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 | +289 days, USPTO patent term adjustment record | Dec 2, 2026 | 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 | Dec 2, 2026 | Medium confidence |
This family
| US 7,466,420 | In force Dec 2026 | Dec 2026 |
| US 7,463,359 | Term ended Sep 2026 | Sep 2026 |
| Application PCT/US2007/004290 | PCT application no patent term | no patent term |
| Application PCT/US2007/004241 | PCT application no patent term | no patent term |
| US 7,859,676 | this patent Dec 2026 | Dec 2026 |
| US 8,102,534 | Lapsed on the fee record Jan 2016 | Jan 2016 |
| US 8,310,680 | Term ended Feb 2026 | Feb 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 |
|---|---|---|---|
| Jan 6, 2011 Reel 25593, frame 979 | Searete LLC | The Invention Science Fund I, LLC | Assignment of Assignor's Interest |
| Jan 15, 2016 Reel 37500, frame 122 | Searete LLC | Deep Science, LLC | Assignment of Assignor's Interest |
| Jan 27, 2016 Reel 37600, frame 735 | The Invention Science Fund I, LLC | Deep Science, LLC | Assignment of Assignor's Interest |
| Sep 18, 2023 Reel 64943, frame 1 | Deep Science LLC | Enterprise Science Fund, LLC | 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.
What's changing
Dec 2026
Term ends Dec 2, 2026. No further fees fall due before then
Note
The 289 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median 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.