Term ends Jan 27, 2028 · High confidence
20-year base term ended Sep 21, 2025
Held by Arde, Inc.
Filed Nov 4, 2008 as application 12/290,819 · Granted Jul 9, 2013
Base term plus 858 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Sep 21, 2005
Sep 21, 2005
Term ends
Jan 27, 2028
Jan 27, 2028
Granted
Jul 9, 2013
Jul 9, 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
858
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 858 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 Sep 21, 2005, when application 11/232,463, the earliest non-provisional in its chain, was filed (this one was filed Nov 4, 2008) | Sep 21, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +858 days, USPTO patent term adjustment record | Jan 27, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 27, 2028 | High confidence |
This family
| US 7,497,919 | Term ended Nov 2026 | Nov 2026 |
| US 8,481,136 | this patent Jan 2028 | Jan 2028 |
| US 8,821,667 | Term ended Sep 2025 | Sep 2025 |
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 |
|---|---|---|---|
| Jun 17, 2013 Reel 30628, frame 871 | Arde, Inc. | Wells Fargo Bank, National Association | Security Agreement |
| Jun 20, 2013 Reel 30666, frame 127 | Arde, Inc. | U.S. Bank National Association | Security Agreement |
| Jul 30, 2013 Reel 30902, frame 313 | Pratt & Whitney Rocketdyne, Inc. | Aerojet Rocketdyne of de, Inc. | Change of Name |
| May 17, 2016 Reel 38621, frame 339 | Sneddon, Kirk | Arde, Inc. | Assignment of Assignor's Interest |
| Jun 20, 2016 Reel 39079, frame 857 | Wells Fargo Bank, National Association, as the Resigning Agent | Bank of America, N.A., as the Successor Agent | Notice of Succession of Agency (Intellectual Property) |
| Aug 5, 2016 Reel 39356, frame 118 | U.S. Bank National Association | Arde, Inc. | Release of Security Interest |
| Jul 28, 2023 Reel 64424, frame 394 | Bank of America, N.A., as Administrative Agent (as Successor Agent to Wells Fargo Bank, National Association (as Successor-in-Interest to Wachovia Bank, N.A.), as Administrative Agent | Arde, Inc. | Termination and Release of Security Interest in Patents |
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 2028
Term ends Jan 27, 2028. No further fees fall due before then
Note
The 858 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 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.