Collateral for a security interest recorded Sep 12, 2025 (Barclays Bank PLC).
Term ends Dec 11, 2029 · High confidence
20-year base term ends Jun 18, 2028
Held by Altera Corporation
Filed Jul 12, 2012 as application 13/547,697 · Granted Dec 8, 2015
Base term plus 541 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Jun 18, 2008
Jun 18, 2008
Term ends
Dec 11, 2029
Dec 11, 2029
Granted
Dec 8, 2015
Dec 8, 2015
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
541
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 8,238,349, to Dec 11, 2029. The term already ends on or before that date, so the cap shortened nothing.
2 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.
2
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 541 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. 2 of 3 maintenance fees are paid so far. 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 Jun 18, 2008, when application 12/141,157, the earliest non-provisional in its chain, was filed (this one was filed Jul 12, 2012) | Jun 18, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +541 days, USPTO patent term adjustment record | Dec 11, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,238,349) | resolves to Dec 11, 2029, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 11, 2029 | High confidence |
This family
| US 8,238,349 | In force Jun 2031 | Jun 2031 |
| US 9,208,117 | this patent Dec 2029 | Dec 2029 |
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 |
|---|---|---|---|
| Aug 29, 2022 Reel 60921, frame 206 | Altera Canada Ltd.; Intel of Canada, Ltd. | Intel of Canada, Ltd. | Merger and Change of Name |
| Aug 29, 2022 Reel 61333, frame 7 | Altera Canada Co. | Altera Canada Ltd. | Change of Name |
| Aug 29, 2022 Reel 61334, frame 500 | Intel of Canada, Ltd. | Intel Technology of Canada, Ltd. | Change of Name |
| Oct 10, 2022 Reel 61359, frame 223 | Intel Technology of Canada, Ltd. | Intel Technology of Canada, ULC | Change of Name |
| Oct 10, 2022 Reel 61368, frame 947 | Intel Technology of Canada, ULC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2029
Term ends Dec 11, 2029. Maintenance fees still fall due before then
Note
The 541 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 8,238,349, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2015 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.