Term ended May 8, 2025 · High confidence
20-year base term ended Apr 15, 2025
Held by Agamatrix, Inc.
Filed May 16, 2011 as application 13/108,621 · Granted Nov 26, 2013
Base term plus 23 days of patent term adjustment (USPTO delay)
Today
Term ended May 8, 2025
2005
2026
Clock starts
Apr 15, 2005
Apr 15, 2005
Term ended
May 8, 2025
May 8, 2025
Granted
Nov 26, 2013
Nov 26, 2013
base term
patent term adjustment
after the term ends
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
23
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,964,146, to May 8, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
8
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 23 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 Apr 15, 2005, when application 10/907,790, the earliest non-provisional in its chain, was filed (this one was filed May 16, 2011) | Apr 15, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +23 days, USPTO patent term adjustment record | May 8, 2025 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,964,146) | resolves to May 8, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | May 8, 2025 | High confidence |
This family
| US 7,964,146 | In force Mar 2030 | Mar 2030 |
| US 8,591,815 | this patent May 2025 | May 2025 |
| Application 13/108,682 | Abandoned not computed | not computed |
| US 8,852,510 | Term ended Apr 2025 | Apr 2025 |
| US 9,097,651 | Term ended Apr 2025 | Apr 2025 |
| US 9,267,910 | Term ended Apr 2025 | Apr 2025 |
| US 9,709,519 | Term ended Apr 2025 | Apr 2025 |
| US 10,983,083 | In force Dec 2026 | Dec 2026 |
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 16, 2011 Reel 26458, frame 604 | Harding, Ian; Iyengar, Sridhar G.; Wei, Baoguo; Diamond, Steven; Forest, Martin | Agamatrix, Inc. | Assignment of Assignor's Interest |
| Dec 30, 2015 Reel 37405, frame 728 | Agamatrix, Inc. | Midcap Financial Trust | Security Interest |
| Sep 29, 2017 Reel 44034, frame 372 | Midcap Financial Trust | Agamatrix, Inc. | Release of Security Interest |
| Sep 29, 2017 Reel 44063, frame 828 | Agamatrix, Inc. | Prospect Capital Corporation | Patent Security Agreement |
| Nov 7, 2017 Reel 44391, frame 941 | Midcap Financial Trust | Agamatrix, Inc. | Corrective Assignment to Correct the Assignee Address Previously Recorded at Reel: 044034 Frame: 0372. Assignor(S) Hereby Confirms the Release of Security Interest. |
| May 11, 2023 Reel 63604, frame 749 | Prospect Capital Corporation, As Collateral Agent | Agamatrix, Inc. | Release of Patent Security Agreement |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 23 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,964,146, ends no earlier than this term, so it caps nothing.
Citations
3
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.