Term ends Feb 12, 2028 · High confidence
20-year base term ends May 31, 2027
No current holder resolved from the recorded chain.
Filed Sep 14, 2012 as application 13/616,350 · Granted Jun 2, 2015
Base term plus 257 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
May 31, 2007
May 31, 2007
Term ends
Feb 12, 2028
Feb 12, 2028
Granted
Jun 2, 2015
Jun 2, 2015
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
257
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 257 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 May 31, 2007, when application PCT/US2007/013039, the earliest non-provisional in its chain, was filed (this one was filed Sep 14, 2012) | May 31, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +257 days, USPTO patent term adjustment record | Feb 12, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 12, 2028 | High 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 | this patent Feb 2028 | Feb 2028 |
| US 8,965,688 | In force Jan 2028 | Jan 2028 |
| US 9,008,962 | In force 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
Feb 2028
Term ends Feb 12, 2028. Maintenance fees still fall due before then
Note
The 257 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
49
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.