Lapsed Aug 29, 2025 on the fee record · High confidence
20-year base term ended Mar 6, 2026
Second maintenance fee unpaid; grace period ended.
Held by Altera Corporation
Filed Apr 30, 2014 as application 14/265,521 · Granted Aug 29, 2017
Base term, 20 years from filing, plus 500 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Aug 29, 2025
2006
2026
Clock starts
Mar 6, 2006
Mar 6, 2006
No longer in force
Aug 29, 2025
Aug 29, 2025
Granted
Aug 29, 2017
Aug 29, 2017
Term would have run to
Mar 6, 2026
Mar 6, 2026
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
500
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 7,521,907, US 8,013,580, US 8,736,241.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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.
Its term would have run to Mar 6, 2026: its 20-year base term plus 500 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Apr 30, 2014) | Mar 6, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +500 days, USPTO patent term adjustment record | Jul 19, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,521,907, US 8,013,580, US 8,736,241) | capped to Mar 6, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | lapsed Aug 29, 2025 | High confidence |
| Computed term end | The steps above, in order | Aug 29, 2025 | 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 | Term ended Mar 2026 | Mar 2026 |
| US 9,748,840 | this patent 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 |
|---|---|---|---|
| May 15, 2014 Reel 32905, frame 167 | Cervera, Pedro Alou; Marquez, Jose Antonio Cobos; Lotfi, Ashraf W.; Del Pecho, Andres Soto | 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 |
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 500 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 7,521,907, US 8,013,580, US 8,736,241.
Citations
9
later US patents cite this one
That is above the median of utility patents granted in 2017 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.