Lapsed Aug 18, 2024 on the fee record · High confidence
20-year base term ends Dec 12, 2032
First maintenance fee unpaid; grace period ended.
Held by Cirrus Logic, Inc.
Filed Jan 25, 2018 as application 15/879,797 · Granted Aug 18, 2020
Base term, 20 years from filing, plus 162 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 18, 2024
2012
2033
Clock starts
Dec 12, 2012
Dec 12, 2012
No longer in force
Aug 18, 2024
Aug 18, 2024
Granted
Aug 18, 2020
Aug 18, 2020
Term would have run to
May 23, 2033
May 23, 2033
base term
patent term adjustment
after the term ends
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
162
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
Its term would have run to May 23, 2033: its 20-year base term plus 162 days of term adjustment for prosecution delay. 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 Dec 12, 2012, when application 13/712,711, the earliest non-provisional in its chain, was filed (this one was filed Jan 25, 2018) | Dec 12, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +162 days, USPTO patent term adjustment record | May 23, 2033 | 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 | 0 of 3 maintenance fees paid | lapsed Aug 18, 2024 | High confidence |
| Computed term end | The steps above, in order | Aug 18, 2024 | High confidence |
This family
| US 9,042,867 | Lapsed on the fee record May 2023 | May 2023 |
| US 9,917,833 | Lapsed on the fee record Mar 2026 | Mar 2026 |
| US 10,749,864 | this patent Aug 2024 | Aug 2024 |
| US 11,545,155 | In force Aug 2033 | Aug 2033 |
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 |
|---|---|---|---|
| Jan 29, 2018 Reel 44753, frame 700 | Gomar, Marta Garcia | Agnitio SL | Assignment of Assignor's Interest |
| Jan 30, 2018 Reel 45193, frame 806 | Agnitio, S.l. | Cirrus Logic International Semiconductor Ltd. | Assignment of Assignor's Interest |
| Jun 25, 2020 Reel 53040, frame 679 | Cirrus Logic International Semiconductor Ltd. | Cirrus Logic, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 162 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is top 10% of utility patents granted in 2020 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.