Collateral for a security interest recorded Sep 12, 2025 (Barclays Bank PLC).
Term ended Mar 6, 2026 · High confidence
20-year base term ended Mar 6, 2026
Held by Altera Corporation
Filed Sep 2, 2011 as application 13/224,620 · Granted May 27, 2014
Base term plus 246 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Mar 6, 2026
2006
2026
Clock starts
Mar 6, 2006
Mar 6, 2006
Term ended
Mar 6, 2026
Mar 6, 2026
Granted
May 27, 2014
May 27, 2014
base term
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
246
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,013,580.
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.
4
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 246 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Mar 6, 2006, when application 11/368,559, the earliest non-provisional in its chain, was filed (this one was filed Sep 2, 2011) | Mar 6, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +246 days, USPTO patent term adjustment record | Nov 7, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,013,580) | capped to Mar 6, 2026 | 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 | Mar 6, 2026 | High confidence |
This family
| US 7,521,907 | In force Mar 2027 | Mar 2027 |
| US 8,013,580 | Term ended Mar 2026 | Mar 2026 |
| US 8,736,241 | this patent Mar 2026 | Mar 2026 |
| US 9,748,840 | Lapsed on the fee record Aug 2025 | Aug 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 |
|---|---|---|---|
| Feb 13, 2013 Reel 29805, frame 263 | Cervera, Pedro Alou; Marquez, Jose Antonio Cobos; Lotfi, Ashraf W; Soto Del Pecho, Andreas | Enpirion, Inc. | Assignment of Assignor's Interest |
| Jun 20, 2022 Reel 60390, frame 187 | Enpirion, Inc. | Altera Corporation | Assignment of Assignor's Interest |
| Aug 11, 2022 Reel 61159, frame 694 | Altera Corporation | Intel Corporation | Assignment of Assignor's Interest |
| Jan 19, 2024 Reel 66353, frame 886 | Intel Corporation | Altera Corporation | Assignment of Assignor's Interest |
| Sep 12, 2025 Reel 73431, frame 309 | Altera Corporation | Barclays Bank PLC, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 246 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,013,580.
Citations
25
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.