Term ends Jan 17, 2029 · Medium confidence
20-year base term ends Aug 6, 2028
Why Medium: A parent in the chain could not be resolved.
No current holder resolved from the recorded chain.
Filed Sep 14, 2012 as application 13/616,408 · Granted Apr 14, 2015
Base term plus 164 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Aug 6, 2008
Aug 6, 2008
Term ends
Jan 17, 2029
Jan 17, 2029
Granted
Apr 14, 2015
Apr 14, 2015
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
164
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.
6
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 164 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 Aug 6, 2008, when the earliest non-provisional application in its chain was filed (this one was filed Sep 14, 2012); a parent in its chain could not be resolved (the next row) | Aug 6, 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 | +164 days, USPTO patent term adjustment record | Jan 17, 2029 | 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 | Jan 17, 2029 | Medium confidence |
This family
| Application PCT/US2007/013039 | PCT application no patent term | no patent term |
| US 9,448,072 | In force Sep 2029 | Sep 2029 |
| US 8,712,686 | In force May 2027 | May 2027 |
| US 9,046,373 | In force Feb 2028 | Feb 2028 |
| US 8,965,688 | In force Jan 2028 | Jan 2028 |
| US 9,008,962 | this patent Jan 2029 | Jan 2029 |
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 23, 2026 Reel 75170, frame 859 | Freeflight Acquisition Corporation; Acr Electronics, Inc.; TRX Systems, Inc. | Ares Capital Corporation, As Collateral Agent | 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
Jan 2029
Term ends Jan 17, 2029. No further fees fall due before then
Note
The 164 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 10% of utility patents granted in 2015 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.