Also listed on American Panel Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Nov 7, 2025 (Wells Fargo Bank, National Association, as Successor Agent).
Term ends Mar 12, 2031 · High confidence
20-year base term ends Aug 15, 2028
Held by Mercury Mission Systems, LLC
Filed Aug 15, 2008 as application 12/192,285 · Granted Nov 5, 2013
USPTO first gave this application the number US 8,553,178 and withdrew it before it issued. That number now leads here.
Base term plus 939 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Aug 15, 2008
Aug 15, 2008
Term ends
Mar 12, 2031
Mar 12, 2031
Granted
Nov 5, 2013
Nov 5, 2013
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
939
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 939 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 Aug 15, 2008, when this application, 12/192,285, was filed | Aug 15, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +939 days, USPTO patent term adjustment record | Mar 12, 2031 | 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 | Mar 12, 2031 | High confidence |
This family
| US 8,576,354 | this patent Mar 2031 | Mar 2031 |
| Application PCT/US2009/048912 | PCT application no patent term | no patent term |
| US 9,110,334 | In force Aug 2028 | Aug 2028 |
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 |
|---|---|---|---|
| Oct 27, 2008 Reel 21742, frame 255 | Dunn, William; Lecave, Michael; Presley, Harry | American Panel Corporation | Assignment of Assignor's Interest |
| Nov 4, 2011 Reel 27175, frame 463 | American Panel Corporation | Bank Of America, N.a. | Security Agreement |
| Oct 4, 2013 Reel 31350, frame 988 | Tabor, Kevin Francis; Filkins, David | Schott Corporation | Assignment of Assignor's Interest |
| Jul 9, 2015 Reel 36051, frame 554 | American Panel Corporation | Fifth Third Bank | Security Interest |
| Apr 25, 2016 Reel 38588, frame 967 | American Panel Corporation | Fifth Third Bank | Corrective Assignment to Correct the Remove Patent Numbers 589608, 6075472, 6222469 and 6356266 Previously Recorded at Reel: 036051 Frame: 0554. Assignor(S) Hereby Confirms the Security Interest. |
| Sep 13, 2017 Reel 43856, frame 854 | American Panel Corporation | Fifth Third Bank | Corrective Assignment to Correct the the Following Patent Is Not Encumbered by This Lien: 618107 Previously Recorded on Reel 036051 Frame 0554. Assignor(S) Hereby Confirms the Patent Security Interest. |
| Jun 14, 2018 Reel 46093, frame 910 | Bank of America, N.A., as Administrative Agent | American Panel Corporation | Release of Security Interest |
| Aug 8, 2018 Reel 46582, frame 6 | Fifth Third Bank | American Panel Corporation | Release of Security Interest |
| Nov 14, 2019 Reel 51010, frame 381 | American Panel Corporation | Bank Of America, N.a. | Security Agreement |
| May 3, 2022 Reel 59798, frame 226 | American Panel Corporation | Mercury Mission Systems, LLC | Merger |
| Nov 7, 2025 Reel 73506, frame 518 | Bank of America, N.A., as Predecessor Agent | Wells Fargo Bank, National Association, as Successor Agent | Notice of Successor Agent and Assignment of Security Interest in Reel/Frame 051010/0381 |
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
Mar 2031
Term ends Mar 12, 2031. No further fees fall due before then
Note
The 939 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2013 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.