Also listed on Evident Technologies, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 6, 2027 · Medium confidence
20-year base term ended Jul 12, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Nanoco Technolgies, Ltd.
Filed Jan 8, 2009 as application 12/350,615 · Granted May 1, 2012
Base term plus 209 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jul 12, 2006
Jul 12, 2006
Term ends
Feb 6, 2027
Feb 6, 2027
Granted
May 1, 2012
May 1, 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
209
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 209 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 Jul 12, 2006, when application 11/484,785, the earliest non-provisional in its chain, was filed (this one was filed Jan 8, 2009); a parent in its chain could not be resolved (the next row) | Jul 12, 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 | Feb 6, 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 | Feb 6, 2027 | Medium confidence |
This family
| Application 11/484,785 | Abandoned not computed | not computed |
| Application PCT/US2007/015851 | PCT application no patent term | no patent term |
| US 8,168,457 | this patent Feb 2027 | Feb 2027 |
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 |
|---|---|---|---|
| Mar 30, 2010 Reel 24157, frame 331 | Gillies, Jennifer | Evident Technologies | Assignment of Assignor's Interest |
| May 26, 2010 Reel 24434, frame 534 | Evident Technologies | LC Capital Master Fund, Ltd.; Opalka Family Investment Partners, LP; Walter L. Robb C/O Vantage Management, Inc.; Singer Children's Management Trust C/O Romulus Holdings Inc.; Chalis Capital LLC; Bazco, LLC; Birch Holdings, LLC; Sola Ltd. C/O Solus Alternative Asset Management LP | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | LC Capital Master Fund, Ltd. | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Opalka Family Investment Partners, LP | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Walter L. Robb C/O Vantage Management, Inc. | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Singer Children's Management Trust C/O Romulus Holdings Inc. | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Chalis Capital LLC | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Bazco, LLC | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Birch Holdings, LLC | Security Agreement |
| May 26, 2010 reel/frame not recorded | Evident Technologies | Sola Ltd. C/O Solus Alternative Asset Management LP | Security Agreement |
| Dec 17, 2010 Reel 25521, frame 260 | LC Capital Master Fund, Ltd.; Opalka Family Investment Partners, LP; Robb, Walter L.; Singer Children's Management Trust; Chalis Capital LLC; Bazco, LLC; Birch Holdings, LLC; Sola Ltd. | Evident Technologies, Inc. | Release of Security Interest |
| Nov 17, 2011 Reel 27244, frame 766 | Evident Technologies, Inc. | Nanoco Technolgies, Ltd. | 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
Feb 2027
Term ends Feb 6, 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
2
later US patents cite this one
That is below the median 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.